Do you want a single Wildfly installation with several standalone.xml ? If I understand as this, then it is possible.You may use -c to inform an alternative xml file name and jboss.server.base.dir for an alternative directory name, see example:
./standalone.sh -c standalone-full.xml -Djboss.server.base.dir=/full/path/alternatve-standalone-dir
Yes I want a single Wildfly installation with several standalone.xml. Can I run all of them as service in production environment.