How to animate the IK FK influence with the rigify metarig?

I would like to animate a character jumping. So I guess the feet have to lose the IK influence and go FK for the time of the flight.

But while the slider in the N tab in the 3D view allows you to go from 0 to 1 in influence, I see no way to “record” this action. If it is even possible.

If it is not, anybody can give me a hint of what I should be doing to animate a simple jump? (and making a rig myself is a big no no for now)

Thanks in advance :slight_smile:

[solved] Stupid me. Found the answer… Right clicking on the slider gives the option to add a keyframe…