How to access Blockbench in Mcreator?

Ok, So I'm fairly new to Mcreator but I've already figured out how to make everything in the drop down menu. Just two problems: First, I don't know how to access Blockbench or whatever it's called to make custom models, making my mob making capabilities very limited. Second, I have to use normal textures for mobs, and on these I can only identify which parts of the texture are the legs. Where is the face? That's what I'm asking.

If anyone has an answer, please reply and thank you very much.