Ok, so I worked this afternoon about this, and now you have an option to selectively choose which templates to import. (see screen shot)
I'm not working on the same thing for the export process. (which is a bit more complicated than I thought!)
Heh, it took me 20 minutes (and a Google search

) to realize I need to put [] next to the input name when doing:
<select name="blbla[]"
multiple>