With respect to importing targets from other SGPro sequences I should color this a little. The target import system typically works with a very limited set of target data when executing an import. This means that we typically have stuff like Target name, RA, DEC and a couple other things. When importing an SGPro target, we, obviously, have access to every aspect of a target, including events. Why is this data not used?
So... right now, SGPro target import is pretty dumb and it "drops" a lot of data that the original sequence had. It is the intent, before this beta is done, to incrementally add a more robust SGPro to SGPro target import while at the same time extending the import functionality to any other import that may have additional data to give.