possible to load field data from another project to CST MWS?

is it possible to load 3D field data to a MWS simulation from another MWS simulation? What I want to do is the following. I want to run a simulation with the device inserted into the simulation domain and another simulation with the device removed from the simulation domain. Then I want to load the field data from the "simulation with device removed" to the simulation where I have the device. And finally, I want to subtruct the fields from each other to obtain the induced fields.
Note: it is possible to subtruct fields within the same simulation by using the template base post proccessing.

I have found an informal solution to this problem. It is complicated but works fine. If anyone needs this please contact me.

Dear irfan1,
please look at the topic ,"how to get a normalized power spectrum for a PCW", Thank you for your consideration, I am very anxious to get a reply.