Hiding a specific partition slot when equiping a chest piece

[nilead]

 Encountered it a couple of times in the past, where equiping a chest piece would hide forearms/calf slots. Hide as in - item remains equipped, but is not rendered.

Well, i want to intentionally create this effect to automaticly hide HDT underwear when equiping a non-bouncing body armor. Issue is - im having trouble replicating the effect.

Im reasonably sure it has to do with assigning additional slots beside 32 to chestpiece, but so far i either get items to coexist, or force unequip eachother.

 So, if anyone knows what setup can cause hide effect and how can i replicate it - id greatly appreciate a hint.

Edit: After a bunch of trial an error i was able to replicate the effect by assigning slot 50 (one i use for test) to armor addon section and mesh, but not armor seciton. Unfortunately, effect is reversed, as in - part of chest piece that was assigned with slot 50 gets hidden instead of underwear( Still looking for advice.

[nilead]

 Ok, after alot of trial and eror i gave up on idea, as i was unable to determine how to accurately predict wich part gets hidden.

If anyone finds this topic with the same intention - DD has a devices underneath option, wich in practice changes anything in designated slot. Using that is a good workaround if your load order allerady has DD anyway.