Sending more then one file with a HTTP request

[Adriaen Ploos van Amstel]

Hi,
 
I recorded a script with Badboy, one of the steps is that an user can
Upload 2 files (.csv) to send with the HTTP request. This script is
exported to Jmeter.
 
My Question is: How can I send more then one file in a HTTP request (in
Jmeter)?
 
Adriaen