Relation Constraint's FCurve Box - Setting up Curve programmatically

Rigging
1

Hello,
I would like to set up an FCurve programmatically (via pyfbsdk) for a “FCurve Number (%)” box of a relation constraint.
I guess that would mean to access the curve of the node and create my own keys.
Though I was not able to access the FCurve stored in the node.
I am wondering if I am looking at the problem from the wrong angle (perhaps the FCurve approach is sending me out of course) or if it is one of those features that are not exposed in pyfbsdk.

Thanks in advance to all of you for any pointer <3

2

You said you were not able to access the FCurve stored in the node. Can you post some sample code of how you’re doing this?