I can't seem to find where to input the song structure ie : v1, v2, r, c1, c2, v1, v2, r, c1, c2, c1, c2, blank, b, b, b, b
for the foldback to follow the structure.

Can anyone help me ?

I'm sorry, EasyWorship doesn't have an area to enter the song structure.
I have added it to our feature request list.