RE: Is it possible to use Expected Ship Date from a line item with saved search criteria or results?
You may also find the same answer in suiteAnswers, answer id: 29429.
To display Expected Ship Date on Sales Order searches, use the Ship Date field on a search.
On the Main Line it would display the Ship Date but on the Item lines it would return Expected Ship Date.
Scenario 1: On Criteria set Main Line to Yes then the Ship Date value is the Ship Date
Scenario 2: On Criteria set Main Line to No then the Ship Date value is the Expected Ship Date
Hope it works!