I try to find in admin guide but there no specification. I would also say – try and error approach..
Try if it work it works otherwise…. Assign same location.
You can do it easily in 18.104.22.168 version. You can do this through Data load rules. You have to create Data load rule for each location and then assign these Data load rule to individual batches. Create a Total Batch with all individual batches and run Total Batch which loads data automatically different locations.
=_Do they point to the same target application?
It points to same target application depending on the way of defining data load rule.
Also you have the flexibility of using the utility from a batch file (windows or Unix),
loaddata USER PASSWORD RULE_NAME IMPORT_FROM_SOURCE EXPORT_TO_TARGET EXPORT_MODE IMPORT_MODE LOAD_FX_RATE START_PERIOD_NAME END_PERIOD_NAME SYNC_MODE
So, you can create one batch file calling the loaddata multiple times even if they are part of the different target application.
Look under Executing the Batch Script for Data Load Rules