Not sure if you have it already but

when i double click my switch , a user standing on a furni teleports to somewere else

1. Place a freeze tile under the furni you wish them to be standing on when teleported.
2. Toggle Furni State (Set to any timer- you might wish to set it at 30 seconds and hide it) on top of a Furni State is Changed box (Set to the switch).
3. Place an exit tile where you want them to go.

when i hit my switch, it puts a furni infront of someone, they teleport to somewere

Same as above with a Match Furni Position to State box (set to the furni you want to move)

Hope that helps