Difference between: Toolbar, Collection and Groups?

I have “myTab” that looking at the Doc: https://docs.mcneel.com/rhino/6/help/en-us/index.htm#options/toolbars.htm%3FTocPath%3DGlobal%20Options|Toolbars|_____0
I presume is a toolbar.
I was trying to save an open toolbar collection by pressing the specific Rh right button.
It asks me Collection Group Toolbar. But if I select toolbar, it ask me for the collection name.

What is the difference between Toolbar, Collection, and Groups?

Hello -

toolbar = the one-set-of-buttons thing that can float on the screen or be docked.
group = multiple toolbars nested into a tabbed container.
collection = the rui file



Hello Pascal, I’m double checking
Toolbars and Tabs are the same thing?

Well, within a ‘group’ the individual toolbars are accessed via tabs… so I guess yes - but to refer to tabs really only make sense in the context of a grouped set of toolbars (to me)