Addons save in 2 places. Some use both locations to save different things.
World of Warcraft\WTF\Account\ACCOUNT NAME\SavedVariables
and
World of Warcraft\WTF\Account\ACCOUNT NAME\SERVER NAME\TOON NAME\SavedVariables
Copy the LUA file for whatever mods from the master account to the same place in the slave accounts. Make sure it's the LUA, not the BAK. It should say LUA under "Type" or when you right-click > Properties, not LUA.BAK.
Settings are not saved in the ADDON folder. Copying the entire WTF folder will also copy the \ACCOUNT NAME\Saved Variables and \ACCOUNT NAME\SERVER NAME\TOON NAME\Saved Variables paths, thus not putting the files in a folder that the slave accounts will access.
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