keynote slideshow link gone?!

I used to create slide shows in power point that would allow "sub" slideshows within.

Then i bought a Mac...

Had to figure out how to link from one slideshow to another but now Apple took that

away from us! So annoying. Should have stayed with power point.

someone suggested using the build function, but that doesn't work either!😢

Is there anyway to atleast go back to the keynote 5 version?

Patty