texmacs-users - [TeXmacs] Cancellation of terms

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Is there any way in TexMacs to do cancel like below.

[TeXmacs] Cancellation of terms, Michael Shea, 03/15/2015
- Re: [TeXmacs] Cancellation of terms, Nicola Mingotti, 03/16/2015
  - Re: [TeXmacs] Cancellation of terms, Sam Liddicott, 03/18/2015
    - Re: [TeXmacs] Cancellation of terms, Nicola Mingotti, 03/18/2015
      - Re: [TeXmacs] Cancellation of terms, Martial Tarizzo, 03/18/2015
        
        Re: [TeXmacs] Cancellation of terms, Nicola Mingotti, 03/18/2015
        
        Re: [TeXmacs] Cancellation of terms, Miguel de Benito Delgado, 03/20/2015
        
        Re: [TeXmacs] Cancellation of terms, Sam Liddicott, 03/20/2015
        
        Re: [TeXmacs] Cancellation of terms, Martial Tarizzo, 03/20/2015
        Re: [TeXmacs] Cancellation of terms, Sam Liddicott, 03/20/2015
        Re: [TeXmacs] Cancellation of terms, Sam Liddicott, 03/20/2015