new cell is bugged when created.

[Charlescad]

Hello,
When i create a new cell via ein:worksheet-insert-cell-below-km, it sometimes create a new cell in the sense that I see "In [ ]:" but it is not possible to write anything and the indow to enter text below does not appear. It does not happen everytime but randomly.
Once it happened, it is very unconvenient: I cannot kill, nor save the buffer any longer! When i try to save for instance I get:

Unbound slot: ein:codecell, "#<ein:codecell ein:codecell-8ab6b31f44>", input, oref

More precisely when I try to add a new cell (ein:worksheet-insert-cell-below) I get:

ein:worksheet-insert-cell-below-km: Wrong type argument: number-or-marker-p, nil

This is what a "toggle-debug-on-error" gives me:

Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil) poly-ein--relative-to-input(19 #<ein:codecell ein:codecell-748052a018>) #f(compiled-function (cm &optional pos) "Return a list of the form (TYPE POS-START POS-END RESULT-CM).\n\nTYPE can be \\='body, nil." #<bytecode 0x1b8e40a8a81d00b6>)(#<pm-inner-overlay-chunkmode ein-input-cell:> 19) apply(#f(compiled-function (cm &optional pos) "Return a list of the form (TYPE POS-START POS-END RESULT-CM).\n\nTYPE can be \\='body, nil." #<bytecode 0x1b8e40a8a81d00b6>) #<pm-inner-overlay-chunkmode ein-input-cell:> 19) pm-get-span(#<pm-inner-overlay-chunkmode ein-input-cell:> 19) pm--get-intersected-span(#<pm-polymode poly-ein-polymode:> 19) pm--innermost-span(#<pm-polymode poly-ein-polymode:> 19) pm-innermost-span(19) pm--lsp-position(19) polymode-before-change(19 19) #f(compiled-function (cell) "Insert input of the CELL in the buffer.\n Called from ewoc pretty printer via ein:cell-pp'." #<bytecode 0x5d8a7e3203a7495>)(#<ein:codecell ein:codecell-748052a018>)
apply(#f(compiled-function (cell) "Insert input of the CELL in the buffer.\n Called from ewoc pretty printer via ein:cell-pp'." #<bytecode 0x5d8a7e3203a7495>) #<ein:codecell ein:codecell-748052a018> nil) ein:cell-insert-input(#<ein:codecell ein:codecell-748052a018>) ein:cell-pp((input) #<ein:codecell ein:codecell-748052a018>) ein:worksheet-pp(#s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-748052a018> :class nil)) ewoc--refresh-node(ein:worksheet-pp [[[[[[[... #7 DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #6 #("\n" 0 1 ...) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #5 #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #4 #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #3 #s(ein:$node :path (cell footer) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #2 #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#2 [#3 [#4 [#5 [#6 [#7 ... ... #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path ... :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #("\n" 0 1 (read-only t front-sticky t)) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] "" #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [[[[[[[... #8 ... #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #7 #s(ein:$node :path ... :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #6 #s(ein:$node :path (cell footer) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #5 #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #4 #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #3 "" #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#3 [#4 [#5 [#6 [#7 [#8 ... ... #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path ... :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell footer) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #("\n" 0 1 (read-only t front-sticky t)) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>]) ewoc--insert-new-node([[[[[[[... #6 ... #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #5 #s(ein:$node :path ... :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #4 #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #3 #s(ein:$node :path (cell footer) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #2 #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #1 #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#1 [#2 [#3 [#4 [#5 [#6 ... ... #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path ... :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #("\n" 0 1 (read-only t front-sticky t)) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] "" #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-748052a018> :class nil) ein:worksheet-pp [[[[[[[... #9 ... #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #8 #s(ein:$node :path ... :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #7 #s(ein:$node :path (cell footer) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #6 #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #5 #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #4 "" #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#4 [#5 [#6 [#7 [#8 [#9 ... ... #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path ... :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell footer) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #("\n" 0 1 (read-only t front-sticky t)) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>]) ewoc-enter-before(#s(ewoc :buffer #<buffer *ein: http://127.0.0.1:8888/Untitled9.ipynb*> :pretty-printer ein:worksheet-pp :header [[[[... #4 ... #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #3 "" #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #2 DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#2 [#3 [#4 ... ... #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path ... :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #("\n" 0 1 (read-only t front-sticky t)) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] :footer [[[[... #4 ... #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #3 #s(ein:$node :path ... :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #2 #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#2 [#3 [#4 ... ... #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #("\n" 0 1 ...) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] "" #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] :dll [[[[... #4 ... #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #3 #s(ein:$node :path ... :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #2 "" #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#2 [#3 [#4 ... ... #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path ... :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #("\n" 0 1 (read-only t front-sticky t)) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] :last-node [[[[... #4 DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #3 #("\n" 0 1 ...) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #2 #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#2 [#3 [#4 ... ... #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path ... :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell footer) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] :hf-pp insert) [[[[[... #5 ... #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #4 #s(ein:$node :path ... :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #3 #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #2 #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#2 [#3 [#4 [#5 ... ... #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path ... :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #("\n" 0 1 (read-only t front-sticky t)) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] "" #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-748052a018> :class nil)) ewoc-enter-after(#s(ewoc :buffer #<buffer *ein: http://127.0.0.1:8888/Untitled9.ipynb*> :pretty-printer ein:worksheet-pp :header [[[[... #4 ... #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #3 "" #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #2 DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#2 [#3 [#4 ... ... #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path ... :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #("\n" 0 1 (read-only t front-sticky t)) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] :footer [[[[... #4 ... #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #3 #s(ein:$node :path ... :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #2 #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#2 [#3 [#4 ... ... #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #("\n" 0 1 ...) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] "" #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] :dll [[[[... #4 ... #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #3 #s(ein:$node :path ... :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #2 "" #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#2 [#3 [#4 ... ... #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path ... :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #("\n" 0 1 (read-only t front-sticky t)) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] :last-node [[[[... #4 DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #3 #("\n" 0 1 ...) #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #2 #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#2 [#3 [#4 ... ... #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path ... :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell footer) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] :hf-pp insert) [[[[[... #5 ... #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #4 #s(ein:$node :path ... :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 2 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #3 #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 9 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #2 #s(ein:$node :path (cell footer) :data #<ein:codecell ein:codecell-7480508228> :class nil) #<marker at 11 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] [#2 [#3 [#4 [#5 ... ... #<marker at 1 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] DL-LIST #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] "" #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 19 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell prompt) :data #<ein:codecell ein:codecell-748052a018> :class nil) #<marker at 12 in *ein: http://127.0.0.1:8888/Untitled9.ipynb*>] #s(ein:$node :path (cell input) :data #<ein:codecell ein:codecell-748052a018> :class nil)) #f(compiled-function (&rest path) #<bytecode -0x8a399f48eca559c>)(input) ein:cell-make-element(#f(compiled-function (&rest path) #<bytecode -0x8a399f48eca559c>) 0) #f(compiled-function (base-cell other-cell) #<bytecode -0x53645f434d7d68a>)(#<ein:codecell ein:codecell-7480508228> #<ein:codecell ein:codecell-748052a018>) apply(#f(compiled-function (base-cell other-cell) #<bytecode -0x53645f434d7d68a>) #<ein:codecell ein:codecell-7480508228> #<ein:codecell ein:codecell-748052a018>) ein:cell-insert-below(#<ein:codecell ein:codecell-7480508228> #<ein:codecell ein:codecell-748052a018>) ein:worksheet-insert-cell-below(#<ein:worksheet ein:worksheet-7480508064> code #<ein:codecell ein:codecell-7480508228> t) funcall-interactively(ein:worksheet-insert-cell-below #<ein:worksheet ein:worksheet-7480508064> code #<ein:codecell ein:codecell-7480508228> t) call-interactively(ein:worksheet-insert-cell-below) ein:worksheet-insert-cell-below-km() funcall-interactively(ein:worksheet-insert-cell-below-km) command-execute(ein:worksheet-insert-cell-below-km)