Option Button Help

Hi All,

I want to use option Button in a form.

I have three option button on my windows.

I launch my SDK program via SAP in order to open my form.

If I click on one of the three button nothing append.

I don't know how to use this Item.

Is there someone who can give me an example or some help please?

Thanks your help

Laetitia.

Ps: Sorry for my english