Float curve as group input

It would be really nice to be able to add (float)curves as a group input in geometry nodes. This could for example work by adding a "curve input" socket to the Float Curve node. So by default you would use the graphical interface of the node, but there would also be an option to plug curve information, just like you can with regular float inputs. Plugging this in would the of course grey out or hide the standard curve interface. The same idea could also be applied to color ramps for instance.

I have seen a similar request to this here. However, as of my understanding, that was only for node-groups.