For those who are interested: Habitat & Participation is organising a two-day training course (in French) during the weekend of 9 July. The main theme is self-management. The cost is 75 euro.
More information can be found on their website: https://www.habitat-groupe.be/agenda/namur/9-10-07-i-formation-aux-outils-dauto-gestion-de-collectifs/