There does not appear to be an easy way to move instructions to desired locations after they have been create. A user can drag an instruction very easily but there is not a way to move an instruction to say Sta 101+50, precisely.
I tried selecting an instruction and editing but that did not work. It looks like I will have to create points at all of the spots I need and move the grips to these points. Doable but slow.
Am I missing something? Maybe the instructions need a field in the properties for location, then a user could user right click snaps to move these more easily.