Maybe not a hotbar exactly, but I agree, crafting needs a separate window/pane for you to move items into to perform the craft. In-inventory is okay for things in the same tab, but when it comes to items between tabs, it's too inconvenient.
The Identification Glasses and Repair Hammers shouldn't really be inventory items. Once you pick one up, you can use the same one all game long. Therefore, there's no reason to make them items in your inventory. They should each just be a button you have on your equipment tab of the inventory that you click on to enter repair or identify mode.
