If you no longer need an application or AppleScript in a group, you can remove it from the group.
Open Application Wizard.
On macOS 13 or later, choose Application Wizard > Settings. On macOS 12 or 11, choose Application Wizard > Preferences. Then click Groups.
Select one or more applications or AppleScripts in the list.
Click the Remove (-) button at the bottom of the list or press the Delete key.