Spring connection between two reference points

Dear all,
I have a question on connecting two Reference Points with a spring, giving then to the spring an assigned stiffness on X,Y and Z directions.

Would it be possible to do that with PrePoMax?

Thanks in advance for help, and regards, Umberto

Currently, only spring to ground is implemented but spring between 2 nodes was also requested and can be defined manually for now: Spring between two nodes