Group Sync via AD

Hello,

Can anybody help me with a query I'm having.. I am setting up Group Sync in Collaborator with AD server, however I wanna import only groups that begins with OU_ or OO_..

There is a field Automatic group creation filter that allows to filter the groups, however I am not sure of the complete expression that needs to be entered in that field. Is it just: (OU_.* or OO_.*).. Will this expression work?

Thanks.