Shortcut to toggle secondary side bar

Ctrl+Alt+B is the default shortcut to toggle secondary side bar in VS Code, which I use to read documentation and figures. In Cursor, this is set to be toggle AI panel, which seems to a third side bar. So what shortcut should I use to toggle the second side bar?

I thought that this was it but I was wrong
view/hide Activity Bar
image
I don’t have an option to Show activity Bar but it didn’t actually hide anything (the 4 icons and Chevron are still there)

if you have a screenshot of what you want to hide then we can try to get to it