In Version 6.3 you can modify the states via the webinterace. At the moment it is not possible you need to work with rails to rename/create etc.
Thanks. I saw the issue Possibility to add custom ticket states · Issue #4862 · zammad/zammad · GitHub where we are introducing the capability of adding a new state via the Web interface.
But looking at the mockups in that issue, I didn’t find a way to use a custom sort order like when adding a new attribute. That’s what I am looking for.
You can only “custom sort” states by adjusting the name imho.They’re ordered alphabetically.