PropertyManager page Radio Butoons

PropertyManager page:

I'm using the PropertyManager page, with 3 group boxes. In thefirst group box I'm using 3 radio buttons , and in the Second groupbox I'm using 2 radio buttons. When I select the radio button inthe first group box and then select a radio button in the secondgroup box , the radio button in the first group box get deselected.
Is there a standard way to resolve that ?

Thanks in advanced

Bart
SolidworksApi macros