Keeping Dialog Button Selected

[william3711]

I am writing a program in Visual Studios 2012 Express edition I created a Dialog Box using ResEdit that looks like this






I want to make it so when I select the A Button button it stays selected when im changing the value in the repeat and delay editboxes I only want it to deselect it when I click On another button like the B Button button.

Is there a way to make this Dialog Boxes buttons group buttons if not how do I accomplish what im trying to do?