Pipeline's advice is what I was thinking when I replied to you.
Using the new grid that Realband has, which goes down to 32nd notes, all that you'd need to do is to copy and move the chord that you wanted back a 32nd note using snap to grid -- this will create a 1/32nd push.
What I normally do is to create my SGU/MGU in BIAB and then open it in Realband when I want to perform tasks that challenge BIAB.
If you go to the link below, it will open some tutorial files using Realband. These were recorded with RB 2014 but the remains the same today. Have a look at these and see if they help get you started.
https://www.pgmusic.com/videos.realband.htmSome points relevant to RB 2019 that might help...
1. The grid is accessed by right-clicking on any track and down the bottom of the pop-up menu is a "Grid" option.
2. Snapping feature that aligns events with gridlines is found directly below the window that shows the style being used. It's called "Snap to beat".
3. If you left-click on the any track and then roll the mouse scroll, it will expand/diminish the track view. Expanding the view makes aligning events with the grid much easier.
Please don't hesitate to ask more questions. We'll get you going!
Regards,
Noel