You can make it a button and the script will run with a single click.
I'd go with the single click button approach, but if you really want the double click, it is possible:
Set Variable [ $Click; Value:Get ( CurrentTimeStamp ) ]
If [ not IsEmpty ( $$PrevClick ) and ( $Click - $$PrevClick ) < 1 // Double click ]
//Do what you want to see happen with your double click
//Do what you want to see happen with a single click
Set Variable [ $$Prevclick; Value:$Click ]
You'd enter layout mode, select the field, then use Button Setup... to attach this script to your container field.
Note: Double Clicking a container field not set up as a button will automatically open any store by reference file or any file stored as an object.