Loot Alert - Account-Wide Settings?

[NeuroticPixels]

Is there anything simple I could add to addons' lua to make its settings account-wide?
Or does the coding somehow change depending on the addon?

I desperately need Loot Alert to have account-wide settings for my fiancee and myself. It's very time consuming and tedious to add each individual item to the "watchlist" in the addon on each character. Especially when the list already has probably around 100 items, and I just need to add a few new ones... to every single character we have.
Ugh.

Can anyone assist me with this, please? Thank you in advance.