Hmm I'm thinking yeh should default to some amount of button, 4-5 with it staying visible, when creating a bar.

I think what happens when someone first starts out .never having done this before,they create a bar then end up clicking somewhere else which causes the bar to become not visible.
Trying to remember the first time I setup macaroon

or instead of right clicking on the mini map button have it so it pops up a menu when yeh click on it then when yeh click on it again it goes away.
That way yeh get a better visual indication yer in edit mode.