Duncaninfrance

The answer is to download Adobe RAW plugin 10.5 BUT Photoshop Elements only supports 9.2 so you need to buy Elements 2018.......It now works.

Set-up menu (wrench icon) > Save data set-up > Copyright info > Delete copyright info. Then enter your own author and copyright info.

exactly, in my camera, XT1 this only changes the name of the files produced (I gave my initials to it) but in no way I could put my entire name on it, I can add a maximum of 4 letters. Anyone could replicate this on his camera by the way, so how would this be a “ copyright”?https://www.fuji-x-forum.com/topic/6840-copyright/?tab=comments#

Yes, I don't think it was available for the X-T1: it came in with the next generation of cameras. Certainly available on the X-E3.

Fuji doesn’t offer this function.
You can change the name of the files into some sort of initials (mine are) and reset the counter . 
If you do anything processing your Raw files you can set your program to do this for you. Not that any of this cannot be bypassed anyway...