[Moved]: Radiation diagramm cst

Hello guys!

I would like to ask you something
I have designed 2 printed antennas on cst.
I haven't put ports at all on them.
Now, i want to see the radiation diagram when the first antenna has excitation and the second antenna is shorted or open-circuited. How can i obtain these two radiation diagrams? What should i do in the second antenna(that is going to be shorted or open-circuited)

Thank you very much!