CST MWS and polarization

this may sound to be simple but there is some confusion regarding polarization status of antennne in CST.

1:how to determine that antenna is linearly polarized or circular or elliptical?

2: if its linear then how to determine whether its vertical polarized or horizontally polarized?

3: if its circular or elliptical polarized how to determine whether its left hand or right hand polarized?

4: and finally how to plot the co poloar and cross polar radiation pattern of any antenna in cst

i hope someone will know the answers to these questions.

regards