Need SO # , SO Line # visible on Auto-create PO form while creating PO for a PR

Hi All,

Below is our existing system behaviour :

-- A Sales Order (SO) is created manually by user

-- MRP creates a PR for this above Demand (SO)

-- User creates PO for the above PR through Auto-create PO form

Requirement 1 : When the user is searching for the PR on the Auto-create PO form, the user wants to see which PR line is created for which SO # and SO Line #

This info needs to be visible on the 'Auto-Create PO' form while the user is about to create PO for the PR

Any idea or suggestions how to implement this requirement # 1