In the mixer I have my piano track set to 90 for volume. At a certain bar I want that to go to 110 and then at a later bar I want it set to 70.

I am in the Bar Settings dialog but cannot make any sense of it. There is an option to make the track Louder (by bar) and another to Fade (by bar) but that sounds like it is going to apply the change gradually over multiple bars...not what I want.

There is an option to "Change by" and then a blank text field but I am not sure what to put in there. Do I type the number I want the new volume to be? That didn't seem to work. Or should I enter the difference from current and desired volume using +/- to increase or fade? Or maybe this is a %?

I looked this up in the user guide but it does not explain it.

Anyone know how this works?