Stock Picking Batch Set Quantity

This module works inside batch transfers (grouped pickings) in Odoo Inventory. It adds a small arrow button next to the reserved quantity on the move lines and detailed operations lists.

• Clicking the button copies the reserved quantity into the done quantity field for that line, so users do not have to type the numbers one by one.
• The button is hidden when the line is already done or cancelled, or when a done quantity has already been entered, so it only appears when it makes sense.
• Only users with stock user rights see and can use the button.
• For products tracked by serial or lot numbers, the quantity is only filled automatically when the lot or serial is already set on the line, or when the operation type does not require lot tracking at all. Otherwise nothing is changed, avoiding wrong lot assignments.
• Lines that are not reserved or only partially available are skipped.
• The done quantity field is highlighted in green when it matches the reserved quantity, giving a quick visual confirmation that everything reserved has been processed.

The module touches the stock.move and stock.move.line models and the batch transfer screens, and it depends on the standard batch picking feature.