DO you mean things like the port numbers Tomcat will be using?
I have fuzzy indications that MAYBE server.xml can handle variable substitution, but ultimately server.xml IS a properties file. When running multiple Tomcat instances, you would normally split the CATALINA_HOME and CATALINA_BASE directories apart and keep a distinct server.xml in the CATALINA_BASE of each defined Tomcat.
Being persecuted doesn't in any way prove your righteousness or your beliefs. Many people get persecuted because they are repugnant or annoying. Or just because they can be.
Why is the word "abbreviation" so long? And this ad is so short?