Peter.
i just set up my laptop as i would use it in a hotel room on holiday.
ie no big monitor. maybe its my vision impairement but i see no zoom buttons in chord view. even with big monitor. same.
i do have the zooms in other views. not chord view.

re "properties"/tabs. no i wouldnt expect that on everything.

the problem i find with "one unfolded chorus" is use of the right hand vertical scroll bar all the time to move around on a long song.
up and down continuously. on a small screen stuff disappears.
maybe my problem is i'm used to , in a daw, a horizontal linear fashion. so i guess i would like tabbed chord view cos it would be linear horizontally like a daw. just the way my mind works.

regards.
oldmuso.

my songs....mixed for good earbuds...(fyi..my vocs on all songs..)
https://soundcloud.com/alfsongs
(90 songs created useing bb/rb)
(lots of tips of mine in pg tips forum.)