Export Antenna Model from Antenna Magus 5.1 To CST Microwave Studio 2014

I have designed a fully parameterized 2x2 microstrip patch array using Antenna Magus 5.1 Pro and estimated performance successfully. But now I want to export the antenna to CST MWS using its 'export mode'. But the dialogue box is showing "No models available to export" and I've posted the screenshot here. What am I doing wrong ? Or how to do it right ? Please let me know asap as I got stuck in my new project and this is the first time I'm using Antenna Magus. Thanks in advance.

you may be not selected the design

Would you please tell me from where I've to select the design step by step ? As you see I've selected the antenna in the new attached photo. Am I doing it wrong ? Please let me know. Thanks.

i also want to export and run file in feko kindly help. Missing tabs of feko and cst in export mode of magus. It says no models available to export