Quote Originally Posted by kimberlyj View Post
So in theory, can I multiclass into Rogue and gain the open lock and disable device skills, as well as a better stealth ability--even though I started as ranger and not as a rogue?
No, the default Tempest path starts with 8 Int, so that's only 5 skill points / level on Ranger levels. You won't be able to catch up on Rogue skills nor maintain them high enough.
If you really want Rogue skills without starting again from scratch, then it may be better for you to buy Veteran status and reroll. On another, hand, reaching L3 only takes a few hours once you are familiar with the early quests.