I would like to propose idea of allowing placement of blueprints without mods needed by the blueprint. Currently, if you try to place a blueprint with modded blocks and you do not have the required mod, the game refuses to place the blueprint. In Space Engineers, if you try to place a blueprint with modded blocks, the game shows a warning message about missing mods and procceds to paste the blueprint. Any modded block without the required mod is removed from the pasted blueprint.