Aside from the Stock Allocation area, your Pick Tickets can also be raised directly from the Sales Order in your Order Tracker.
Note that using the Stock Allocation module is preferable as it eliminates the risk of human error and overallocating your stock.
Go to the Order Tracker [OT] of your Sales Order
Click on the menu icon next to the Sales Order (SO) number and choose the 'Add Pick Ticket' option
For any sales orders with saved allocation quantities, the order tracker progress charts will display Allocated units.
Go to the Products tab and manually add the quantities or auto-fill for all products
Tip: Reveal the Closing Stock (CS) figures and use the Auto-Fill to either add the full outstanding balance to each Product or to add the outstanding balance capped by the amount of available Closing Stock.