Hello Dwarahkesh,
I could not find any functionality to consolidate from the Inventory Management > Outbound Orders > Shipments
But you can create a consolidate shipment while you post pick list form;
1. Change the Summary Order > Summary update for = Invoice Account

2. Click on Select and set the query as per your requirement to pull all Order for respective Customer
3. That would pull the orders as per the select query
4. Click on Arrange to consolidate the orders
5. Post
This would create 1 consolidated shipment for all the orders included in picking list.
Kindly let me know if this answers your query