New option to generate DBD without metadata

We would like to have a new DBDGEN option that enables users to generate a DBD without an extended fields table for metadata.
For example, we propose adding a new macro like below, which precedes other DBDGEN macros and allows users to specify not to include metadata in DBDs:
DBDOPT METADATA=NO ... new macro (optional)
DBD NAME=HDO6,ACCESS=(HDAM,OSAM),RMNAME=(DFSHDC40,5,5), +
ENCODING=CP1047,REMARKS='DBD WITH META DATA'
:
DBDGEN
FINISH
END
We need this kind of DBDGEN option in order to support databases that have large metadata in batch utilities like Unload, Reload, and so on.
These utilities load DBDs during the processing, but since DBDs are required to be RMODE=24, they can easily run out of storage below 16MB line when DBDs have several megabytes of metadata. These utilities do not access metadata at all, so they can process these databases when DBDs without an extended fields table are provided.
One customer already reported this issue. As a workaround, we provided a modified DBDGEN macro that does not generate an extended field table and asked them to use it for creating the DBDLIB for batch utilities.
The modification we made on DBDGEN macro were in two lines, as follows:
1. Replace "DC A(EXOPRTAB)" at line number 08650000 with "DC A(0)"
2. Comment out the DFSFTAB call at line number 19050000
The customer accepted it as a temporary solution, but they requested a permanent solution to be integrated into the official DBDGEN macros with a new keyword like METADATA=NO, because they do not want to check on every IMS maintenance if the modified DBDGEN macro still works. That is the background of this RFE.
In order for the batch utilities to detect that the extended fields table has been eliminated, we would want the new DBDGEN process to indicate it in the DBD.