The resource navigator can't show subitems. The regular project explorer is in the Java perspective.

Yes, I said we could hook on the project explorer. The resource navigator is deprecated.

Updating tickets (#1033, #1013, #1038, #1040, #1011, #1012, #1015, #1016, #1017, #1020, #1021, #1025, #1028, #1034, #1035, #1036, #1037, #1044, #1047, #1049, #1023)

The support for working sets is there.

What happens is that the project explorer shows empty when choosing working sets as roots. I think we need to implement "Erlang working sets" for that [check JDT for details]

Also, we need to check which functionality needs to be aware of working sets -- the problems view seems not to filter according to that - should it?