Backtrack with ``q'' (or right mouse button) to the start of the program.
At the very first prompt enter ``s'' for forwards only.
At the ``network size... '' prompt select 25.
At the ``Neighbourhood size...'' prompt select 5.
Keep entering ``return'' to accept defaults for the seed etc.
A the the ``Select SEED...'' prompt enter return'' then ``a'' to set all cells at random.
At the OUTPUT PARAMETERS prompt enter ``d`` for ``space-time pattern only``.
At the ``run network backward-b, ...'' prompt enter ``b``.
At the ``forwards before backwards?'' prompt select say 3 steps forward (from the seed) before running backward (because the seed itself is likely to be a garden-of Eden state with no pre-images).
Enter ``return'' at the next prompt. The subtree is generated with its seed highlighted as a bit pattern. If the seed happens to be an attractor state, the whole basin will be generated with the message ``subtree=basin'' in the top right data window.
Enter ``return'' for the next mutant.
Toggle the display of the ``backwards`` space-time pattern and the state-space matrix as described in 3.2. Enter ``q'' to interrupt (and backtrack).