Gplus for Siebel outbound

[merlin]

I have a problem in creating and updating Siebel campaigns. When I create a new campaign Siebel create this campaign, but send this campaign and two calling list. The first calling list has the same name of the campaign, the second one has a name like nameOfCallingList(nameOfCampaign). I want to understand if this is normal, and if I could customize Siebel in order two send only one calling list.

Thank you very much,
Sandro