Multiple Location from P4205 not work for configured item

Hi Experts,

I noticed that Multiple location from P4205 does not work for configure items. I saw the code and it says that if STKT = "C", Multiple location cannot be launched. I have two questions:

Question 1: I think the reason of locking Multiple location is that it shows all the available lots, without filtering using Configurator ID. Are there other reason of this lock?

We need to have Multiple location unlocked, my idea is to add configurator ID on F41021, change the code of P4205, unlocking multiple location. I want also to change code of P42053 to add filter by configurator ID.