Thanks everyone, I put some treats on the stairs last night and sat a few steps down from the top, Dizzi came down 2 steps, sat facing the wall for a while then went back up whilst Rascal just sat at the top watching!
Will try again and just see how they do, if they don't like it I won't keep trying but I reckon if Dizzi carries on as she did last night that Rascal will follow her!
They might decide its easier to be picked up and taken down in the long run! :lol: