I would like to consolidate Order lines for the same Item into a single Picking line.
Solutions
It is not supported by Mobile WMS or Base application
You can cannot combine Pick lines per Item.
The warehouse shipment lines have a one to one relationship with the order lines and you can only ship from one bin at a time per line.
Mobile WMS
Does not add any functionality regarding Pick creation.
Pick Worksheet
The worksheet can separate Picks based on Shipment, Item, Bin etc.
But not consolidate.
Tote-picking
Mobile WMS Tote-picking will allow you to easier pick multiple Order to the same Receipient and in the process physically place the items in a Tote/Package.
But not consolidate lines.
Seek professional assistance
You need to have this conversation with a dedicated Warehouse consultant, most likely via your Business Central partner.
Example: Pick Worksheet
Steps:
Create two Sales orders
Create a blank Warehouse Shipment
Select "Get source Documents" to add your Order(s)
Select "Create Pick"
Set Sorting Method to Bin
If there is a correlation between the Bins, the pick lines will be grouped/ordered together.
Pick worksheet with two Sales Orders added.
The combined pick lines of all the orders are now shown on the mobile device.