How do I upload a separate version of the same avatar with vrchat?

For example I have "avatar1" that I use, then let's say I make some simple edits like adding earrings then I want to upload that new version as "avatar 2" so I can switch between them. The thing is when I go to unity and try to upload to vrchat it by default has the name "avatar1" already set and just wants to override the one I already uploaded. How do I upload different versions of the same avatar?