Please post in english
Désolé je suis juste français
I created new States dedicated to development projects
I found out how removed the workflow states , however I can not remove some States ( for exemple: the state "new" )
You cannot remove status "New" from workflows.
It is always the first in the workflows.
All items are created into this status.
You can just rename it.
Ok tanks you
but for the stats
"en attente"
"en pause"
"annulé"
I can't remove them
Possibly you can't remove them because they are used on some workflows.
Check all workflows are remove them.
You'll then be able to delete them.
Another way, is to "close" them (set idle). They'll disepear without being deleted.