Add controls to another form

I'm trying to write a code witch will open any form (for example, any report form) and add some controls to the end off the form with will serve for the common logic of these forms. So I tried to add them with the following code:

   BottomGroup = Items.Add ("BottomPanel", Type("FormGroup"));
   BottomGroup.Type = FormGroupType.ButtonGroup;
   Button = Items.Add("OKButton", Type("FormButton"), BottomGroup);
   Button.Type = FormButtonType.UsualButton;
   Button.CommandName = "CommonCommand.SaveReport";

I think the better way is put this controls to form in design mode, and manage controls visibility from program code.

This is not the case for me. The reason I'm trying to do it via code is that I have to add these controls to every form of one kind. So it is a waste of time and future problems if I'll try to ad them in designer.
Please help me with the solution.

The Syntax Assistant says that the CommandName keeps the name of the form command, in other cases (the common command for example) it is blank. So you can set the form's command there and call the common command inside of it.

Maybe this will be helpful also: form items have SetAction method.