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In the preferences: Window -> Preferences -> Servoy -> Startup there is an option to give the servoy.properties file name. This must be a file relative to the application_server dir. This way you can configure a specific workspace to use a specific servoy properties file.

The system property that can be defined at the command line: property-file (-Dproperty-file) will override this again.

Using Commandline to Open Servoy

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Using different server.xml files per workspace or eclipse install

With the system property: webserver-file (-Dwebserver-file=myserver.xml) you can override or choose another server.xml that the Tomcat installation that the developer starts will use. This way you can start it with different ports like one that binds ot 8080 and one that binds to 8081.

This filename should point to a file that is relative to the [servoyinstall]/application_server/server/conf dir (so besides the normal server.xml file)