Design Dialog New button shows this dialog that is used to add controls to the form.
Select the type of control you want to create and give the control an id.
Some controls, such as edits, are often labeled by a static. If you want to label the control, fill in the label field. Check down if you want the control below the label.
To create several controls of the same type, for example several radiobuttons, fill in the copies field. Check down if you want them vertical.
Click OK or Apply to recreate the form with the new control(s).