The PYTHA Planer is a useful tool which allows you to efficiently plane down overlaying edges of cabinet or furniture parts.
The first step in planing is to select the part (or parts – you’re able to select multiple parts in this function) you need to plane. You’ll then need to select the face that acts as the planer and your part will be automatically planed – turning on Solid view will make this easier.
Your part will now be planed to meet your planer face. If you want to remove the opposite portion of the part being planed, simply hold down the shift key when selecting your planer face.