Currently you must open a Project Group in order to remove it.
However, some project groups can contain a large number of projects. It would be better if you could remove a project group without having to switch to it first.
Also, it would be good if you could remove a number of project groups at the same time i.e. tick checkboxes to select each Project Group you wish to remove.
Integrated into 'main-silver', will be available in build *201309170002* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
User: Martin Kozeny <email@example.com>
Log: #234021: It is possible now to remove group(s) in separate dialog without requirement of opening it.