Rookie problem with widgets

I really am a dunce with Librecad so please be patient. I have been using and learning for several months and always on the right was a box with 3 tabs: Command Line, Layer List and Block List. I somehow deleted this and now I have managed to have 3 separate boxes (Command Line, Layer List and Block List) instead of one box with three tabs.  How can I combine these to the previous format? Any help is appreciated!!

Welcome cwrandolph!

You can just drag 'n drop the boxes around.
Grab one box on the top, where the title is and then move it over another box and drop it.
Changing colors should should show what happens when you drag the box.

Dropping the box over another one will result in a bottom tab bar to toggle the boxes.
Do the same with the 3rd box.

To change the tab order, you can drag 'n drop the bottom tabs.

It is not much, but there is a short explanation in the manual:
https://librecad.readthedocs.io/en/latest/getstart/configure.html?highlight=layout#layout

Armin

Thank you Armin!  It worked and you have saved my sanity - at least for the next 15 minutes.