On Fri, 21 Aug 2020 10:11:45 +0100, Pwllgloyw
wrote:
wondered if I could dedicate
this just to grass cuttings - probably with shredded paper

Yes it does work, I find coreggated cardboard works best, (amazon
boxes!) You will be surprised just how much you will get rid of, tear
the cardboard into palm size bits, that way you get more "edges" and
it will compost faster. If it starts getting slimy, you need more
cardboard!