With JobScheduler Release 1.10. a new job diagram viewer ist available.
see JOE-36
To enable the job diagram viewer, please install graphviz dot command. To check, wether it is available, open a shell and type dot -?
Hint: If dot is not available JOE writes the value false to JavaSoft/Prefs/com/sos/joe/globals/options/properties/com.sos.joe.globals.options./Options/editor.jobchain.digagram.show
Graphviz can be downloaded from here: http://www.graphviz.org/Download..php