I could not find a modding section. Maybe I've gone blind ?

Anyway, in 4K everything scales (using new patch based on OldUnreal code access) apart from the mouse pointer.
I think I found the UT menu mouse pointer in Textures --> UWindow ...
I managed to export. But how import ?
I had a brainwave and found that in properties there is Texture --> DrawScale thinking I can just scale it up. Does not matter if it's a bit blocky at the moment.
Tried to save that expecting to find a UWindow.utx file to replace but it's not there.
Would appreciate any help with this so I don't go blind (again
