I don't quite agree on the AP-balls (especially now that they light up and have all kind of other indicatrors added since beta)... but crafting, sure.
I can respect that opinion. I figured out the AP-balls on my own much faster than the crafting; that should give some indication as to priority.
My own suggestion was to add a locked door to the tutorial, 2 broken half-keys and the player should combine them to open the door... tutorial added.
I'm not sure how you expect the game to show drop & drag; nowhere does the game uses video-tutorials (like Divinity II, and those were a waste of resources mostly), so I hardly doubt they would start for crafting, would be too breaking...
If not a video, then a dialogue box, just like the ones the game already has (ex: "Press i to access your inventory"). A simple line of text such as "Drag and drop one item in your inventory onto another to craft" should do the trick.
