I am trying to make a workflow for a specific list content type. Unfortunately, there seems to be no option to do so. I can create a list workflow in SP Designer but can't find an option to associate with one of that lists' content types. Moreover, if I go straight to the content type I want to associate the workflow to, there is no option to actually create a workflow in SP Designer for that content type, although I can see a blank window for "a list of workflows associated with this content type".
Finally, if I get out of Designer and go to the content type in SharePoint, I can indeed "Add" a workflow to the list content type, but it will only allow me to select from about 5 stock default workflows and I cannot create a new one. If I try to create a new one that is "globally reusable", the button to promote to global is also grayed out.
So far all dead ends. Any advice for what I'm missing here?