Installation for Adobe Photoshop Version 22+

Extensions (legacy) menu greyed out in Photoshop version 22.3

In case you have Photoshop version 22.3 or further, “Extensions” tab may be inaccessible due to the CEP technology it uses.

To fix AHAU260 Add-In’s appearance, go to “Edit” -> “Preferences” -> “Plugins” -> “Legacy Extensions” -> “Load Extension Panels”. This will prompt you to restart Photoshop. After this, CEP extensions will be reinstalled.