On Tue, 16 Jan 2018 17:52:17 +0000 (UTC), Kiwi User declaimed the following:
Which post I saw after submitting my evaluation
Possibly of more interest
""" Note: the default browser included in Raspbian, Epiphany, has some quirks that mean certain keyboard short-cuts do not work within the Node-RED editor. We strongly recommend installing the Firefox-ESR browser instead:
sudo apt-get install firefox-esr
More recent build include Chromium - which also works fine but can be rather slow on a Pi1 or Zero. """
Apparently it is "rather slow" on an RPI-3 too
The OP might want to give Firefox on the RPI a try (meaning a third experimental run with TOP and browser on the unit).