https://support.ptc.com/appserver/cs/view/solution.jsp?n=CS251161&source=Article%20viewer
Today, only protoolkit allow the access to Mechanisim connection information such as Friction, restitution parameter throug PRO_E_COMPONENT_SET.
To Ease customisation, those informations should be accessible (read and write) through the VB or Jlink API, like any other parameters of Creo.
Spring parameter are alredy Accessible through VB
As other mecanism parameters are not
And some are neither accessible through VB or Toolkit. (see in the attached ppt)