HFSS field calculator - solving field integrals

Hello everyone,

I have a question regarding the field calculator in HFSS.

I want to integrate Ez*exp(-jbx) along an x-orientated line. Ez is the z-component of the electric field. I managed to integrate Ez along the line. But how do I include the phase term exp(-jbx), which is also depends on the integration variable x?

Any help would be appreciated!