changing message object to something else

I hope this is something obvious I am missing, but I am converting a rather large patch to RNBO.
all my message objects (and there are a lot!!) need to be changed to set objects.

I went through and changed them so they say "set depth1" for example, but it still thinks it is a message object.

Naturally I can just create a new object and type "set depth1" and it works properly, but having to recreate and rewire literally hundreds of them seems painful