Notebookbar can hide or minimize?

Can the notebookbar in version 6.0 Hide/Minimize for more space work? if you click on the tab name, can minimize or maximize?
in calc or write

I need an answer to that question, too.

No need to look any further. It is you lucky day. The question now has an answer posted.

I’m pretty sure that with the single toolbar, you can customise the toolbar to add menubar as an icon. You can then turn off the menu by pressing the menubar icon. Drag the toolbar from its dock and close it. You should now have a control-free spreadsheet.

There might even be a way to get the controls back, who knows?