Hello,
Hope this message gets to you well.
In fact, I encountered an error while using Arcgis Desktop. I purchased a permanent licence of Arcgis desktop and a permanent licence of avaition airport extension. But when I try to enable aviation airport extension in Arcmap it doesn't show in drop down list though its permanently activated.
Any help from users that have a certain experience in using this software will be appreciated.
I joined a screenshot explaining the issue.
Regards,
Léon