I've been working with multiple data sets and experienced some tecnical difficulties. For example; when I'm importing multiple data from a project saved beforem not all groups are selectable in the Components, and some times even none of them are selectable.
In the case I could see the groups imported selectable in the Components, if I import new datasets as groups they will not be selectable as Components, but the list will still be the first avaiable ( like it's frozen) untill the reboot of the software.
It's a pity because it's doing the rest of the job grandiosely.

I'm running Athena from Windows 10.

Regards,
Matteo Busi, University of Stavanger, Norway