Would it be possible also to export cvars, chat positions, and other variables that can be set? This would make myslot the ultimate solution for setting up alt accounts.

Here is an example of an addon that does CVars: https://www.curseforge.com/wow/addons/cvarsbackup

may i know any scenario to use cvar?
maybe myslot should remain only related to slot?

I sometimes play on alt or friends account, and we not only have different spell slots/keybinds, but also settings. I regularely use myslot to impoart/export between accounts so this would help a lot!