How to get the hook/crane in Townscaper, none of the other guides seemed to have this one.
Guide to Get Hook/Crane
How to Get the Hook
Make sure that you have at least a one block gap completely around the block you want the hook to drop down from, as well as 2 blocks below it (as shown in the picture).
If you add a third block behind the hook, it will vanish.
The hook will also work if only one of the sides has a one block clearance.
I hope this helps with your quest to make your island a little bit comfier.