created an attachment (id=155572)
screenshot

description:
"display name key" should be shown in output columns.

build number:
2.5.2.v20100106-0630

steps to reproduce:
1. new a script data set.
2. go to "output columns" page, edit columns.

expected result:
"display name key" is shown and can be set.

actual result:
see the screenshot.

error log:
n/a
added the property "display name key" for the script data set ui entrance.
verified in build (2.6.0.v20100524-0630), closed.