[NTG-context] Local alternative to \input

I have a document that is getting a lot of mark-up instructions for creating tables and placing figures. I would like to move this out of the main text flow. The easiest way would be using \input, but i rather place all this at the bottom of the file and just refer to it with something like \localinput or so to a textblock at the bottom of the same file. What would be the easiest way to implement this?