Provision to Allocate available inventory to 2 sales order partially

There is a use case where we want to allocate available qty to 2 different sales order partially.

Consider we have SKU1 with 100 NOS as available qty and 2 sales order SO1 and SO2 for SKU1 each with 100 NOS. Now we want to allocate available qty as follows:

Allocate 50 NOS to SO1 and remaining 50 NOS to SO2 (allocating the entire available inventory to 2 sales order and leaving them as Partially allocated).

How this use case can be mapped.

Regards

Ashraf Bilal