SOP editor … #Interface

Is this really all the documentation there ever was for this or is there more somewhere else?

There was documentation for it back in the Touch017 days over 10 years ago, but many non-working features have been removed and in general the SOP editor is not being developed for, so general bugs you come across will not be fixed. I can not locate the docs right now, but perhaps someone on the forum has an archived copy somewhere?