Superposition BEAM - SLAB

[Anonymous]

ok.. i want to draw a 2nd story slab and the beams that support it.. however.. both are projected on the 1st story with "hidden line" and they are superspositioned and instead of having a projected slab.. i have a continious line..

how do i make them match so i can see both projected lines..

did i make myself clear enough?

[Anonymous]

i just understood what til breton said.. match the origins of the slab and beam so the dashed lines match