revit 2009 moving a plan to a different level

i imported a cad file for the first time and i put it in on the wrong plan level. how can i move the whole plan to a lower level without reimporting it

right click the imported dwg, element properties and choose what level you want it on in 'Base Level'

ok i already built the drawing up from the level it was currently on, which was too low. is there a simple fast way to move everything up to a higher level?

click on the level in question and change the height (in elevations)

i have an extremely picky instructor and if the ground line doesnt show 0'-0" and the floor line 1'-0" then ill lose points. i have to create a slab that the plan sits on which starts at the ground level

easiest way is to add a new level 1' above ground level, and draw your slab connecting to the top and bottom of each level.

remember in Revit, dont be afraid to use lots of levels. my default template file has 16 levels for just a normal 2 storey dwelling.