quest combines in containers

[Turath]

asked this a bit ago but got no response to this question

is there a way to set a container to combine only certain items?

like the one iksar monk shackle quest, you gotta go get the hand with a thumb that is a container then collect the missing fingers and put them in it, hit combine button and that container and items disapear and you get your finished product

is there anyway to do these kinda things yet?

same thing with all the newbie armor quests, gotta collect the items and combine them in the container the guildmaster gives you then you get your sheet of metal, then combine that with the mold given to you in a forge and get your final product, just with these quests you don't loose the combine container after combining in the special kit given to you by the guildmaster

if the ability to do these things are already in can someone tell me how? or if it's not in yet hopefully it can be soon, would get quests able to be finished