Robin,
Agree that turning on individual lighting circuits should be recognised as moods by the Lighting Controller if there is a matching mood.
With regards your scenario, what would happen if Presence timed out whilst the floodlight is turned on? Would you expect all the lights turn off, just the lights that were turned on when Presence was detected to turn off, or all the lights stay on until you turn the floodlight off and then they all turn off?
As you say, there are various ways that you can work out a solution, and depending on how you use your lights will make it more or less complicated.
Having the switch directly control the lighting circuit rather than through the Lighting Controller is probably easiest, but means that if the rest of the lights go off when Presence times out, the floodlight will stay on.
Alternatively you could use the switch to turn on the floodlight but turn off all the lights; how you do that depends on how the switch is wired. I've got a "normal" light switch which is wired into a digital input, so when turned, the light goes on, and when turned off, the light goes off. This just uses Edge Detection to send pulses (in my case to a Stairwell Light Switch for the downstairs toilet, as my wife always forgets to turn the light off and I've put it on a timer).
More complicated would be to use the Presence function block with an Edge Detection on it to turn the light off via the Off input on the Lighting Controller when Presence times out, but you would need to configure it so that it only does that if the light was turned on by Presence, and then only when the floodlight isn't on.
Cheers,
Ewan