I wanted to have items that have their own skills when equipped, but there doesn't seem to be any way to do that.
First, I was going to add a common event that adds / removes skills when an item is equipped, but the closest check was available was checking the inventory and including equipped.
Then, I tried adding a custom event directly to an item in the db, but the only available trigger is "on obtaining"; theres nothing for equipping and unequipping.

Is there anyway to do this in the panel?

Either way, I think it'd go a long way if there was a feature, or a plugin for "check equipped items" in the panel, and/or a "when equipped" and "when unequipped" trigger in the custom item events.