ApexSQL Pump Multiple File Import - Can multiple files be imported to multiple tables in one project?

Is it possible to import multiple files to multiple tables in one project? Or do you need one project per import?

I have existing tables in SQL Server and every month we truncate the tables and import new data to them.

I'm using a trial version of ApexSQL Pump at the moment and when I tried to import 2 files to 2 tables at the same time, it only imported the 2nd file. 

No warnings are listed and it allows the import to run. Any help would be greatly appreciated.