Reactive pellet Bed

Hi,

I need to use the concentration inside the pellet to define a new function in variable list (out of the reactive pellet bed feature). The problem is that COMSOL knows the variable "tds.rpb1.cpe_X" only inside the Reactive Pellet Feature. How can i use the concentration variable "tds.rpb1.cpe_X" in a section other than reactive pellet feature?

Best Regards