I'd love to see something like an "Import All" option. If this sounds like a server drain, maybe have it accessible when a new mapping is added to the job. Case in point:
- Customer started the GS Connect
- Time goes on, then they decide "hey we actually need this field in the data set"
- Update mapping
- Click Import Now, but not all records get updated
- Try to remember what date they started the imports on, so they can bring in accounts
- (At this point, it now requires too much thought and isn't an ease of use tool)