Factorio Forums

You can force any dropdown in the map generation selection box (for freeplay or map editor) to become empty by clicking on the very last pixel in the dropdown menu. It works better if you go from the bottom up, your mouse must be in the dropdown but very good should not be highlighted yet. Maps generated after doing so all seem to be usable, but with some... unique... characteristics depending on what you blank out. Note: I am using this to generate a map without any of various things atm, so I would love to see this as an actual option once the bug is fixed.

Hi, thank you for the report, it is resolved for the next release.
P.S. In the current experimental release 0.4.1, there is already None option.