How to Edit a Test Execution Record?
One answer
You need to go to the View Test Execution Records from the Execution flyout menu. Select one or more records and click on the small button with an arrow in the column header. You can only change - Test Milestone, Owner, Default script and Weight for the Test Execution Record.
For the default script, you need to click on the pencil icon at the top right of the table.
Thanks Pratshah. I wonder why we cannot change the Test Environment. That is the one I am looking for.