Two shaft conection

[augustodc76]

Hi ROSS developers
I did some trials with ROSS some months ago with a very good results, my congratulations to the ROSS development team!.
Now I would like to evaluate a special case, I have 2 coaxial shafts and I´m having issues with:

1. Im not able to properly locate axialy the 2nd shaft (orange vs blue shaft), the parameter "shaft_start_pos" is not recognized.
2. I cant find an "element" to conect both shafts like a "flange" between (green element)
   Do you have any recomendation to model this case?
   Thanks in advance