closed end shape

[asblo]

Good morning to all
do you know if there is a way to preset a desired sketch at the closed end function? I would need to insert the caps to a series of profiles and the function in question, in the closing, resumes the shape of the profile, to me of course it would serve to be square.
Thank you.

 

[MassiVonWeizen]

with a library function

 

[asblo]

Now I look at it, thank you

 

[asblo]

I did a little bit of evidence, I understood the concept, but I can't make the position references work well, I can't hit it on the profile. a question, the closed end function is a library function of this type (cut + extrude) of this type?

 

[MassiVonWeizen]

in fact every fiction that creates automatism is a library function.