Open the Arrange page and change default value (1 Bar) to 1/2 up to 1/16 and have finer distribution. Then you can resize the chords by the selected value (see video below):
If you want to enlarge a chord that is surrounded by other chords, you need to move all the subsequent chords to the right and then enlarge the one you want.
Removing empty spaces
In my previous video, I forgot to show how to remove the empty spaces after resizing . So, here it is.
Once you resized the chords you wanted, right-click on any of the remaining chords, “Select All”, then right-click on any chord and select “Remove Empty Spaces”.
N.B. You cannot enlarge chord that is surrounded by other chords i.e. that is not the last one, without removing the subsequent chords before enlarging one somewhere in the middle of the progression. Shown in the clip.