Just because I forget to answer the original question:
The lever of an A320 is normally facing a little bit to the front of the aircraft, this is the spoilers/speedbrake down position. To move it to the desired range, you have to push it down (into the pedestal) and then move it backwards. A detent is then only at the 1/2 position, which is important for the means of the auto flight concept where half speedbrakes is maximum with AP on and for pilot information. To activate the ground spoilers, the lever must be in the down position and can then be pulled up (out of the pedestal), but it remains in the down position, this is the reason why you can see pilots hitting on the pedestal while rolling out in some cockpit videos, to get the spoilers back in (dearming them).
You might have mistaken the 5 detent concept from the flap lever, there is also a stop between 2 and 3 to prevent the pilot from selecting the flaps to fast.