Hide Sidebar?

Is there a way to hide the Right Sidebar, especially in the spreadsheet module? I’m thinking that there isn’t, but want to make sure I’m not missing something.

I have many spreadsheets that are wider than the current visible space but not much wider than a full screen, since they were designed that way elsewhere. It would be great to be able to see the full width without scrolling or zooming.

Hi, do you mean this sidebar?
2021-10-27 13-43-19

Oh, puh-leeze! That was way too easy. Thank you.

I’d seen that button, even hovered over it, but just never clicked it. Sheesh.