Originally Posted by Drakah

First, you would need to decide on the UI that would work for all your characters 100%. Otherwise each would need a different UI if there are any slight changes for each character which would be a headache to maintain if you are not the author knowing what to change.

After you have the UI, the only thing you need to deal with is the
UI_Yourname_server.ini
Which is what handles the locations of the windows, size, placement, etc.

If you want to be in the game, move the actions window to the left, and have that move to all your toons, it is not possible to do this within game. You would need to move all your windows where you want, then exit EQ and copy those new location information from the UI INI file to all the others, then log back in.

The file that does NOT have "UI" in front of the file, is for your hotkeys and spell sets, etc. Again, you would have to do your changes in game, exit EQ, copy over the changes to the other INI files, then log back in again.

The only "on the fly" edits are to the character you are moving the windows on in-game, then saves once you zone (I believe). If you edit a INI file manually while in the game, and zone, you loose the edits since the game is not the client that edited it and needs to be.