Alternative Texture Mapping

So I've recently gotten back into MCreator, and made a custom model for my mod. This model has 3 texture files related to it being the Top, Side, and Bottom textures, and this works for the current texture mapping as it should. However, when I create multiple variants of this block I need to make several texture mappings for that variant, so I would like to suggest that the texture mapping can be unique and customizable within the Block Mod Element.

When creating a new Block with that model, instead of the normal Top, Sides, and Bottom/Main textures, I would like to see the texture mappings replace that menu. This would give that block its own unique texture mapping without having to clutter the Custom Model menu with 10+ variants of the same model.It serves its original purpose of giving textures to custom models while not being overly excessive when trying to find other custom models.