3d sidescroller crouch character impossible to accomplice using blueprints

i try to make my pawn to crouch with no luck so far followed 4 different tutorials and i always end up not be able to finish em because of missing stuff to link in animgraph i try to make it 4 days now with no luck
didn’t had any problem with other blueprints like sprint/walk or making doors open close but this one drives me nuts
any help is welcome
ps i am using 3d side scroller template
thank in advance
Dimitris Anogianakis