Highlighting text next to button

[Heime <heimeborgia@protonmail.com>]

I have the function monde that displays some buttons with associated text
describing what the button does.

I would like to highlight the description text corresponding to the button
that was pressed, with NORM being the default when calling the function.   
What can I do ? 

(defun spaz (w)
  "Make a string of width W made of spaces."
  (make-string w ?\s))

(defun mondu ()

  (interactive)

  (with-current-buffer (get-buffer-create "Mondu")

    (insert " MAIN PANEL DU \n\n")

    (insert " ")
    (insert-button "[-]" 'action 'mondu-outbd)
    (insert " OUTBD   ")

    (insert-button "[-]" 'action 'mondu-norm)
    (insert " NORM   ")

    ;;------------------------------------------------------------

    (insert-button "[-]" 'action 'mondu-inbd-eng-pri)
    (insert " INBD ENG PRI  \n")

    (insert (spaz 24))
    (insert-button "[-]" 'action 'mondu-inbd-pfd)
    (insert " INBD PFD  \n")

    (insert (spaz 24))
    (insert-button "[-]" 'action 'mondu-inbd-hfd)
    (insert " INBD HFD  \n") )

  (pop-to-buffer "Mondu") )