Need help with Ptram Gt6's & Gt8's

[Bhorton]

OK, so I have them installed, and then I notice that they have blinkers (see images below)
I was wondering how to activate them, I have tried all of the buttons in the cab, and the setindicator rule.

(Click to enlarge (you may have to zoom in a little))

Thanks in Advance!

 

[Bhorton]

EDIT: It also happens on the 105's and 805's