JW Scheduler allows one congregation at at time. This means Foreign Language group members should still be part of the main congregation. If you wish to wish to set up a Foreign Language group as a separate congregation, you will need to use another computer or setup a virtual machine.
JW Scheduler offers the following support for scheduling Foreign Language Groups:
Scheduling the Midweek Meeting for a Foreign Language Group
Scheduling the Weekend Meeting for a Foreign Language Group
JW Scheduler does not currently support scheduling the Weekend Meeting or Public Talks for a Foreign Language Group.