I am not able to run my command button created through userform in vba editor for running a macro in microstation v8i ss4 drawing.

I have recorded a macro in microstation v8i ss4 and I have created a command button through userform in visual basic editor. But I am not able to place the command button in the drawing and run the macro. How should I link the command button to the macro so that when I place the command button in the drawing and when the user clicks on that button the macro should run.