Hello. I would just like to suggest a small change to the "Layers States" behaviour which is for the plugin to ask if the user really wants to delete or update an existing layer state. As of the current version, the user can easily and MISTAKENLY update or delete a layer state which can be a devastating mistake. Just a simple confirmation message to update or delete a layer state would probably save a clumsy user's sanity.
In any case, thank you very much Didier for this wonderful and indispensable plugin. Keep up the great work!