Have never gotten repeats to work

Yep, Pro. But it is 3, not 4. 4 has what I need.

Composition is notes and placement, music is duration and volume. There never should have been one without the other. Anyway, 4 is pretty cool in the note editing and it is in Write mode. But I can’t switch until my current job is complete.

Al.

This feature was introduced in Dorico 2. Here is the User Guide page for Dorico 3.1.10.
Have you not tried Engraving Options > Bar Numbers?

@al.rushing

Loading Dorico 4 does not wipe out Dorico 3; so you should be able to host both on your machine as long as you keep the existing eLicenser (dongle or internal) connected/active.