I’m just beginning to convert from (g)Vim to GNU EMACS :-))

If you can help me enhancing cobol-mode, that would be great!

Hello and welcome! Moving from gvim to Emacs will be an experience, hehe. How is it going? I don’t use cobol-mode, but you might try asking on news:// for help, or search Google Groups:cobol or something. And of course, if you have elisp questions, we can help you improve cobol-mode yourself. ^_^ If you have never used EmacsLisp before, I suggest you start with the EmacsLispIntro, available online, and then use the ElispManual and the EmacsChannel to answer specific questions. And the wiki, of course. – AlexSchroeder