Using the /up or /down command applies to the entire building as if you used the /up all or /down all command
Using /up or /down command does it to entire building
Always has since it came out, if you want to upgrade individual foundations/walls/floors you would use the hammer function to do it.
/up [grade] [filter]or/up [filter]-- Upgrade each block which is attached to the building you are looking at by one grade or to selected grade. e.g./up,/up 2,/up 1 wall,/up wall/down [grade] [filter]or/down [filter]-- Downgrade each block which is attached to the building you are looking at by one grade or to selected grade. e.g./down,/down 1,/down 1 wall,/down wall/upand/down： Upgrade/Downgrade an entire building (won't upgrade buildings that are close to eachother) (VERY fast even on big buildings) ./upalland/downall: Upgrade/Downgrade everything that touchs each other starting where you are looking at (will upgrade/downgrade multiple buildings if they are too close to each other) (might be slow for big buildings)