A) settings are stored the following two files:
- "~\Documents\Elder Scrolls Online\live\UserSettings.txt"
- "~\Documents\Elder Scrolls Online\live\SavedVariables\ZO_Ingame.lua"
Does game have permission to write to those files?
If those files exist, try to delete them (or better just move them somewhere else, so you still have backup copy). Are file correctly created when you run the game?
Try to run game as administrator (
how to do it), it could help.
B) It is possible to make an addon to set options as you like, but it doesn't solve the issue. Game must have permission to write to the files mentioned above or lots of other functions will not work.