Umbrella should have its own equipment slot and/or hotkey.

The umbrella is such a vital movement tool that I feel like it really should have its own equipment slot and/or hotkey separate from the offhand system. Right now umbrella movement is so important that I almost never use a different offhand, and also usually run around with a 1-handed weapon even though I prefer the two-handed weapons just to retain access to the umbrella. Ideally umbrella floating would always be available via space while jumping/falling if you have one in your inventory, but this would probably require a new equipment slot to be made so the game knows which umbrella to use if you have more than one in your inventory.