Changing a standard transaction type with a customer adjusted one

I am trying to get my newly developed transaction type to work. I copied it from SDCR and called it ZDCR. Make changes to it with several profiles.

But how do you test this in DSWP? It keeps going back to SDCR. I saw the message that this is achieved through "copy controls in customizing section "make settings for change transaction types".

SDCR -> Copy Control Rules -> Target Procedure Type for "U.rgent Correction" = ZDHF. But this is not straightforwarded and doesn't work for me. How can I even check that it takes the new ZDCR instead of SDCR. Is there a table to look at?

Thanks

Paul