why not just swop the new litter tray with the old one as a starter?
if she sticks with her first tray in the new place, you are home and dry (so to speak
)
if she prefers the new tray in the old position, I'd gradually move it towards the hall destination
but I wouldn't try manhandling her at all - she'll do what you want in her own good time (probably
)
and there you are - Gill typed her answer while I was still composing, and we are definitely great minds