This is an enhancement request, following the thread named
"System Properties" on nbusers.

This is not easy to set and change system properties
for the Executor.
There is the Environment variables field in Expert tab,
but these are non System properties.
Also it is not possible to set these for the Debugger.
The only possibility is to put -Dname=value in the
executor arguments, but managing lots of properties
is very uneasy.

What I'd like is some sort of table GUI with a list
of properties, that could be available for Executor
and Debugger.