Would like to be able to set the following:

Set Nigh Invulnerability Belt to swap to an item without an on-use such as General's Leather Belt then after 5 minutes swap back to Nigh Invulnerability Belt.

Not a bad idea for sure but I need to disappoint. I won't be able to invest to much time into addon development and I think the feature would require a lot of ui work. I think this would be much easier with a macro.