I know how to removed them from being published in steam, and have done so. I know how to delete a blueprint that was never published to steam. However for all blueprints that have been pulbished or are published to steam the delete key is greyed out in game. Is there a workaround so I can get rid of them. Trying to get rid of the many many blueprints that are now obsolete...
You go to Steam/SteamApps/Common/Empyrion - Galactic Survival/Saves/Blueprints And simple delete the folder from the BP from there