Adobe Analytics - Upload Segment Values

I would like to be able to upload a CSV file of segment values (i.e. country = x,y,x) so that all values do not have to be entered manually.

We have countries to organize into regions and I'd like to report on regions -- and have to add each country individually to the segment

We have companies we are identifying via reverse IP lookup and want to show target company activity -- and have to add each company name individually into a target account segment.