My ranger has "Open Locks" and Disable Device" listed under skills but is unable to do either of those things. They are marked with an asterix indicating they are cross-class skills that cost twice as much to train. Neither skill is listed when levelling so it is not clear how to do this.
At the end of the Korthos quests I chose The Troubleshooter set which indicates it will give three additional points in both of those skills but it actually gives nothing .
Is it possible to exchange that necklace for one in a set I can use?