I have a small issue as follows:
I am using OPA 10.4. I have deployed document-generation-server.war file in weblogic server as mentioned in the installation document. I changed the value of plugin.docgen.server.url as my deployed document generation server location in the applicaiton.properties file. When I run the application from OPM, it is again pointing to the default server and when I check the application.properties file, I see it is replaced with the default value of http://localhost:9000/document-generation-server9000/.
OPM does replace some values in application.properties before running (or debugging) the application, the location of the document generation server being one of them. However I believe OPM also deploys the document generation server to the internal tomcat so it should just work without needing a seperate deployment.