Toggle the primary sidebar

[tyl012]

Hi, I just started to use mystmd recently. I couldn't find an option to toggle the primary sidebar (as in Jupyterbook) besides hiding it completely. Is there a way to do this?

Edit:
Because my screen is small, so under the default settings, with both the primary and the secondary sidebar opened, the content part is squeezed into a narrow strip. If I zoom in to 110%, the primary sidebar will automatically hide into a sandwich icon on the top left corner, however, the font would be too large. So what I'm asking is: Is there a way to choose to toggle the primary sidebar under the default 100% display size? I don't want to hide it completely from the .yml file since I need to use it frequently to navigate through different pages.