move

local p = peripheral.wrap("left")

p.activate()

for x = 1,5 do
  for z = 1,3 do
    p.setTarget(x,0,z-2)
    while {p.getDistanceToTarget()} ~= {0,-.5,0}  do end
    while not p.isGrabbing() do end
    p.setTarget(x,3,z-2)
    while {p.getDistanceToTarget()} ~= {0,-.5,0} do end
    p.toggle()
    while not p.isGrabbing() do end
  end
end

p.deactivate()