What is the crafting queue?

The crafting queue is a new feature in this version that lets the player queue multiple recipes for sequential crafting.

The crafting queue is built into the AC_Inventory_Crafting system so it is available in both player crafting, and workstation crafting.

How do I change how many recipes can be queued?

You can change the craftingQueueMaxSize integer found inside the AC_Inventory_Crafting component. This variable is used to define the max number of recipes that can be queued up at one time (per crafting component). By default it is set to 10. At minimum this value must be at least 1.