Hi there - wondering what the reasoning behind removing the sandbox scenario was - I can't recall a mention of it in an FFF and only just now found it in the changelog for 2.0. Is it so people don't rush ahead to see every planet without having to put in any of the legwork?
When prototyping a new resource, using the most basic possible richness_expression of a literal number of 1 (and a probability expression meaning the resource should be basically everywhere), the resource does not appear on the map whatsoever.