Would this be possible?

[xef5000]

I'm currently playing on a server and there is a menu that closes everytime we buy something. Would it be possible client-side to stop the menu from closing and being able to buy other stuff after that action? I have some very minor experience in Java and some good experience in JS/Python. I just want to know if this is possible, and possibly if this already exists. Thanks!

[MFMods]

that gui window closing is a developer's decision, not a necessity. so yes, it is possible.

however, to change that, you either have to ask the author to make a change or you can change the mod yourself (if license permits and it almost certainly does).