To my knowledge there is no way to set a different default location, rotation or scale they all start out with 0’s except of course for scale which starts at 1. Now if your issue happens at runtime and it is a blueprint that your having issues with then just simply after begin play set the relative or world location of your actor to have -30 on it’s z axis then as soon as your game starts that’s where it will be. Otherwise you have to move your actors every time. Also why would you want every actor to start at -30 anyway? Might help if we had a bit more information to the problem as a whole rather than just that transform shot. Try to tell us the whole issue.