To get the resource editor to work, i just tested it, you need to be outside either on a mission or on a station like the Citadel. it will fill in the values then.
I was also able to do it on the Normandy after the opening cutscene.
The minerals keep the value 0 and changing the values doesn't have any effect.
Do I have to enter a specific screen? Nothing I tried worked so far.
Thx for feedback.
Update: Returning from a mission to the normandy made it work. Thx
[Edited by spawnfromhell, 5/19/2021 8:08:13 AM]
I just went and used the Cosmos editor. Was really easy to find the values when scanning planets. Then I set them all to 9999999 and never had to worry...lol