TSDA Link - direction dependent properties

[Dash]

Dear all,

I am trying model two 6 DOF rigid bodies being pushed apart by springs.
The springs are fixed to one of the two objects and not allowed to rotate relative to it. On the other object they are pinned and allowed to rotate but not translate.
The springs will push the objects apart and resist relative translation and rotation. I would like assign the spring stiffness in the y direction that is different than stiffness
in the x direction.

Is there a way to give a TSDA link different spring properties / forces in the x, y, and z directions of one the markers it is connected to?

If not, what methods could be used to align a spring element with the x axis of one of the markers and measure the reaction forces needed to keep it aligned?

Thanks in advance,

Dash