Wipe timeline clip

Hi all.
I think I am being incredibly dumb, but for the life of me I can not work out how to use a reference wipe
for two clips whilst on the edit page! It is fine on the colour page but when I go to the edit page I get no wipe timeline clip in the contextual menu and all split screen and wipe options are greyed out in the top menu drop downs. I am using Resolve 17 studio, Thanks in advance.
I think I am being incredibly dumb, but for the life of me I can not work out how to use a reference wipe
for two clips whilst on the edit page! It is fine on the colour page but when I go to the edit page I get no wipe timeline clip in the contextual menu and all split screen and wipe options are greyed out in the top menu drop downs. I am using Resolve 17 studio, Thanks in advance.