Possible to import subject on one protocol and copy to another protocol?

Yes it is possible. It can be done from the GUI (recommended):

Or it can be done by manipulated the files in the database. This would be to merge different Subjects (from laptop) once at the time into the Group protocol (other computer).

:bulb: It is a good idea to make backups before merging protocols. Also, use copy, paste, delete, instead of moving files, in case something fails during reading/writing.