Changing default properties/characteristics

Hello.  I would like to put a DBRadioGroup inside of a GroupBox, to give
the effect of a selectable button next to a TEdit.  The problem is that
the DBRadioGroup gives me the border around it's outermost edges, which
I don't want.  I would like to just have the buttons with the data-aware
capabilities.  Could someone guide me as to what I can override in order
to keep the outline from being drawn around the button group? o?

Also, the capability to disable one or more buttons in the group would
be helpful.  Any advice on this as well?
Any helpful hints would be greatly appreciated. Thanks.

    Mark Clark