My First Active X

Hi there.

I'm trying to make my first ActiveX, and I could use a little help.

I'd like to make a control which is a sort of combination of option buttons and checkboxes.

I'd like a "group number" property in the control.

So let's say I have 5 of my new controls on a form. Two have the group number "1" and three have the group number "2"

The user should be able to select as many controls as they want within the same group. However, as soon as he chooses one from a different group, all of the controls in the first group should be deselected.

Is this making any sense? Does it sound do-able?