The LysKOM buffer no longer is in read-only mode.

src/startup.el

@@ -491,7 +491,6 @@ Entry to this mode runs lyskom-mode-hook."
   (setq major-mode 'lyskom-mode)
   (setq mode-name "LysKOM")
   (setq mode-line-process '(": %s"))
-  (setq buffer-read-only t)
   (use-local-map lyskom-mode-map)
   (run-hooks 'lyskom-mode-hook))