@DReamLand
Perhaps you can reconcile these two posts?
Mad, speedbrake in Airbus speak is a deceleration tool while in flight (spoilers 2,3 and 4), A320 gives you 50% of speed brakes while on autopilot, full speed brakes with A/P disconnected, when config full is selected, speed brakes are inhibited, slightly different system on A321.
.
Ground Spoilers:
(spoilers 1 through 5) ARMED - With both thrust levers at idle, and two main gears compressed.
.
(1 through 5) NOT ARMED - 1 REV, 1 idle or two REV (any flaps, 2 main gears compressed).
.
Manually Extended- CONFIG FULL: spoilers 1, CONFIG 0-3: spoilers 1-4
http://www.pprune.org/forums/showpos...postcount=1088
The lever is used for SPEED BRAKE control, an in the air function only, as was mentioned by another poster, the lever does not move during landing, Airbus pilots don't associate this lever with GROUND SPOILERS, if the GROUND SPOILERS fail to deploy on landing, it's because of thrust lever position, moving the lever back for some kind of manual activation is not an option.
http://www.pprune.org/forums/showpos...postcount=1123
My understanding is that there is no manual GS activation of the GS on the A320, and that even the speedbrake function (which controls only some of the panels) is inhiobited in config Full (i.e. landing). You've referred to manual extension and then said it isn't possible.
Is there any DIRECT control of the spoilers when on-ground in config Full which is not an indirect means reliant on TL movement etc?