It would be really useful if a tree node and all its children could be expanded in one action by right clicking on the node and selecting (a new) "Expand All Below" option. At present you have to click on the node and all its children (and their children...) in turn to expand them all, or you can click the "Expand All" button - but then you have to collapse all unwanted nodes.
I notice the lack of this in two main areas:
- when wanting to browse all the TODOs in a particular package and all its subpackages
- when wanting to see all files under a particular VCS changelist
... however, I am sure this would be very useful under all tree views.
The converse "Collapse All Below" option would probable be useful (and logical) also.