Creative Category Priority

When adding blocks and items to your game through the use of addons, the game selects where they should be located in the Creative Inventory through a set of unclear rules. I believe that it'd be a better system if under the menu category field in the description, a "priority" field was added which would support a float value. All vanilla blocks would be assigned a value, and the lower the value, the more towards the start of the creative inventory the item would be shown. This would allow for fine-tuning of the creative inventory, and entering decimal values could allow you to place your custom blocks/items in between the vanilla ones.