I would like to know how (if possible) to make say five buttons (like the following Calibre buttons - Calibre Buttons) into a drop down button list as my toolbar is getting crowded.
I have tried looking but end up lost and confused.
From Customize mode, right-click where you want the menu to be and choose "New" or "Insert New" (the exact name depends on whether you clicked on blank space or an existing item) and then "New Menu".
You can then click on the new menu to open it up, and drag other things into it.