how do i click processing recipes into the pattern grid when i do not really have the items for me to put in there

you don't, that is how it is designed. But i think you could pull ghost items from the right, but afaik they always come with a full stack, so you need to adjust the stack size every time, so it is a tedious Workaround. Please close the issue if your question is answered :)

k will do

so i basicly change the code so it will not require the items

Technically yes. Keep the license in mind