Add key to a Float Curve in a Blueprint

Hi,

I’m searching everywhere but I can’t find how to create a curve or editing key of an existing one in a separate Blueprint.

The idea is to not have a fixed curve but a curve that can change with the variable I have in my blueprint.

I’ve found the node “Make Interp Float Curve” but it seems that the functionnality isn’t fully implemented as I can’t use it like a Float Curve or interpolate position between my points (see screenshot).

Is there anybody here that know how to edit / create a curve from another blueprint ?

Thanks a lot.