If you read any of the top forum posts you’d be aware that version 2 does allow editing ‘on-the-fly’ but the latest version has a problem which prevents this. It’s being worked on to resolve the problem.
You’ll have to revert to version 2.1.1509.0. which was released on the 9th June 2017 in order to edit ‘on-the-fly’ but uninstall the latest version first.
I only have the portable (no installation version) but this is good enough if you associate your .AXX files with the portable .EXE file. It’ll provide you all of the intended functionality.
https://dropfile.to/K2Mh1ua [the file is digitally signed by AxCrypt]