Custom userscript for a .io web game

Hello. I have another thing that I need I am not sure if you can do it or no. So [login to view URL] is working again which means i dont need the other project as there is no point. There a .io game called [login to view URL] and there is a similar game of this called [login to view URL] I need someone to create a custom userscript code on a google extension called tampermonkey which basically ads a new function to the [login to view URL] game. [login to view URL] has this function/feature called multibox where if you play the game and press tab it will switch to a new blob and pressing tab will switch between the blobs so u can play by yourself with two blobs which is known as multibox. [login to view URL] does not have this feature which is why I want a userscript created for this. The reason I was a userscript created for this on tampermonkey is because I have no admin access to the game meaning I do not own the game or have control of its source files yet I play the game and would love to have this multibox which is available on [login to view URL] added as a feature on [login to view URL] also