How to enable "only" drop partition DDL for Oracle Golden Gate?

I'm struggling with how to do this, and hoping somebody could assist with some ideas. Oracle Golden Gate - general question. Version shouldn't be specific, however, I am currently running on: Golden Gate: 12.2.0.1.170919 Oracle DB: 12.1.0.2.0 Using Golden Gate, Integrated Extract (and Replicat). I have setup a test table using Interval partitioning (by month). I have setup a GG flow to capture the data/rows for this table. This works perfectly, no issues. I then try to setup/enable DDL replication for this table. I add the following to the extract .prm file: DDL INCLUDE OBJNAME myschema.* and that works perfectly. It captures ALL ddl .. ALTER TABLE TRUNCATE TABLE CREATE INDEX ... etc. Now, I want to restrict the DDL so that it captures ONLY : ALTER TABLE myschema.* DROP PARTITION ... that's it ... no TRUNCATEs, no DROPs, no other ALTER TABLE ie ALTER TABLE myschema.mytable MODIFY ( col .... don't want to capture that - for example. I've tried some of the following .. all to no avail: DDL INCLUDE OBJNAME myschema.* & INCLUDE OPTYPE DROP & INCLUDE OBJTYPE 'PARTITION' this still allows ALL DDL DDL INCLUDE OBJNAME myschema.* & INCLUDE OPTYPE DROP & INCLUDE OBJTYPE 'PARTITION' & EXCLUDE ALL This doesn't allow ANY DDL at all .. DDL INCLUDE OBJNAME myschema.* & INCLUDE OPTYPE DROP & INCLUDE OBJTYPE 'PARTITION' & EXCLUDE OPTYPE TRUNCATE & EXCLUDE OPTYPE CREATE That manages to prevent TRUNCATEs and CREATEs .. however, I can't add "ALTER" or "DROP" .. as it starts affecting/preventing the DROP PARTITION clause. I've opened a ticket with Oracle to get some feedback from them .. however, so far, not much luck there. I was hoping somebody here might actually know how to do this ? Thanks!