In BiaB 2022 is there a way to display elapsed time in minutes:seconds or just seconds in the chord sheet window?
I don't believe that this feature is implemented yet.
There is the Timeline bar which also shows song progression, and the length of the song (including intro) is shown on the form caption.
RealBand does include this feature, but I think everyone is still waiting for the same in BiaB (There have been many requests over the years)