I agree but I would also like to add ( you don't have to add this) that when you move the lever in the designer the thing/s that it's supposed to activate will also move, this way we can tell like when making landing gear bays that it is correctly in place when closed, this way we don't have to keep on going back and fourth in the level and designer which is kinda tiring (for some users it's fun since they are used to it) this is just my suggestion (I'm not complaining or anything)