[Question] Making a new equipment slot?

Alright been a while since I posted a question in the modding section but you guys might know if this will work before I try to work on this.  Is it possible to create a new equipment slot type such as what already exists?  An example is like the <Type>Torso</Type> or <Type>Surcoat</Type>? I would like to make a belt, a right ring, a left ring, a necklace, and an accessory slot that is accessible through the armor upgrade section.  I don't think this would work but figured I could ask.