Datafield for Pace / Foodpod and GPS

Hi,
GPS and pace is always a funny point. For this reason I have a Garmin Food Pod which is configured to show always Speed, also when GPS is ON.
It would be nice to see in a datafield the GPS Pace and in a other the FP Pace.

Now the point: I know that in IQ we have a data field "Foot pod pace" to display the foot pod pace, real Speed/pace for the fit file from GPS and only as info field the FP pace.
But I need it in the other way, general use FP for the running speed/pace and only a additional field the GPS Pace.
My "issue" with the "Foot Pod Pace" IQ is that with this field the Pood must not connected so the IQ could use it but I'd like to use "normally" the FP.

I' have searched in IQ but does not find a datafield which fit to my problem?

Do someone have a tip for me?

Kr
Bobble