Every click on the 
, the panel “Compositions” is open.
Is it possible to remember the last choice (Compositions, Blocs or Réutilisables)
Hi @weedor,
Since this is a Gutenberg feature, it is unfortunately out of our hands.
I would suggest bringing this up with the Gutenberg team.
Thank you to take care of this request.
Hope that Gutenberg team will do as well.
Cheers,
Bruno