The addon has reached version 0.0.2, and with that functionality (version 0.0.2 has preferences so you can add your own resolutions), I wanted to put it up for the public. As a Blender user, I already have accounts on Gumroad and other Blender-related sites. The addon is now available on Gumroad.
Let me know what you think of it, positive or negative. Any sale would help me, so if you like what I made, consider buying it.