Using TAdvGlowButton as RadioButton

I want to use TAdvGlowButton as RadioButton ie : I need to have only one button checked at once and when the user check one it deselect the previous checked one.
I may do it by code but as I see the AllowAllUp property (but not a grouped one)  I thought that it is a native function but is it true and how ?

Try setting AdvGlowButton.GroupIndex to a value > 0 and the same value for the group of buttons that need to act like a radiogroup.

Thanks Bruno, it's OK : I was trying with groupIndex = 0