In order to suggest this for future wise, while I myself a Donator I think it would be a crucial addition. Due to the massive shift done by BFA, a lot of people including myself lost our custom items. I would like to recommending adding a sort of vendor management backup tab. Which if cleared would keep the already purchased or used slot for your custom item, simply just stating it is unusable, rather then having it completely wiped, or-just the tab, this way it makes the shifts easier for the future, or prevents massive silver coin lost and custom. A bit of poorly cemented from my words but hopefully the point gets out.