I noticed for example when I'm wearing an item set such as the Scarlet set piece for the belt, leggings, etc - it was difficult to see what items I could equip because the Tooltip was on top of the quick swap / list of items for that slot.

An alternative I thought about, is that for items on the right hand side instead of the list of items appearing to the right, what if it displayed to the left / inwards of the character screen?

I'm sure there's a few different ways to fix this, but eventually once you start to wear multiple pieces of Tier 1 and flip between them it could be a bit of an issue using that system to flip between them and just wanted to provide some feedback.

Appreciate you taking the time to fix this!

I'm not sure if the tooptip position can be influenced by the addon, but maybe you can use the addons set menu instead of the character screen, since the tooltip in the set menu does not appear at the mouse, but at the tooltip anchor of the interface - at least for me.