axe binary package in Ubuntu Bionic amd64

 aXe is a simple to use text editor for X that represents a significant
 improvement over xedit. Also built around the Athena Text Widget it
 features, amongst other things,
   o multiple windows, buffers
   o configurable menus, optional configurable button interface
   o provision for defining keyboard macros
   o file selection via a browser
   o parenthesis matching, regular expression searching
   o restricted or unlimited undo
   o ability to change font
   o both brief and comprehensive (hypertext) on-line help

Source package