Here is a bit of history about CA MetaCOBOL+ 1.1 special and PTFs GO77101/LS45563/LO12009:
PTF GO77101 although intended as a special was sourced into DLM with CA MetaCOBOL+ 1.1 genlevel 9511.
PTF LO12009 was provided for 1.1 to undo GO77101 commenting those statements.
PTF LS45563 was then provided for those situations that needed those statements uncommented.
As intended, CA Datacom support for MetaCOBOL 15.1 was provided with those statements commented (no special). And, since any of the MetaCOBOL macros could be customized by the user, the user continues to have the option to create copied version(s) of MCT#DLM.
Note that CA MetaCOBOL+ 1.1 has end of life (EOL) status since February 15, 2017.https://support.ca.com/us/product-content/status/announcement-documents/2016/ca-metacobol-end-of-life-announcement.html