Unknown Substances

For sometime now, I think we have all been aware that Carbon Dioxide is an 'unknown substance' that cannot be unloaded into a dome. I am currently trying to colonise Moon(19) in the Menzel-3 system. This moon does not have an atmosphere so I ahve to transport all the atmosphere gasses to the dome and unload them. Since I wish to grow fruit in this colony I need Carbon Dioxide as an atmospheric gas. Since It cannot be transported, I thought I would make it on site by splitting Methane and combining the Carbon and Oxygen. However, I now find that Methane is another 'unknown substance' to the Unload command. Carbon itself is also an 'unknown substance'.

I am now wondering if Ammonia is also unknown; not that I can see a use for it in a colony, at present.

Could these substances be added to the list of known substances for the unload command, please.

This is not a priority issue for the moment. Because I cannot see where to place the domes for my Fruit Orchards until the Map Overlay problem is resolved.

Even though it says you need it, you do not. Ignore the warning about co2.

Than, RAM. Why did I not know that?