Add insert item to menu right click to menu c #

I am making an extended clipboard program and I managed to make the part where it remembers the list of copied items, but I need to manage that content as well.

I tried and couldn't find a way to detect the paste from the clipboard, so now I'm trying to add the copied items to the context menu dropdown in the Windows context menu.

So far I've managed to find a way to add items to Folder

regedit, which doesn't help when I need to paste text into a textbox or notepad.

Is there a way to do this?

I am working in C # in .NET 4.0 on a Win 8.1 x64 operating system machine

EDIT:

My task is to collect everything copied / cut to the clipboard and then paste specific lines from that list into an editable text container. Either automatically in the same / reverse order that they are copied, or manually via the dropdown menu in the Windows context menu containing each line in my list.