Hi,
In cuelux when you create a cue it records the parameters and the fixtures it will be applied to.
So if you have created a cue where all your fixture are turning red, each time you will call it all your fixtures will turn red, independently of the selected fixtures on your screen.
But you can also create a cue where only some of your fixtures are selected. In this case if you create a cue where only some of your fixture are yellow, if you activate this cue, just those fixtures will turn yellow, if after you start the cue with all the fixtures in red, they will all turn red.
Now if you first activate the cue turning all fixtures in red, and then the one with only few fixtures in yellow, the fixtures in the second cuelist will turn yellow and the others will stay red.
This because the colour parameter use the LTP priority: Latest takes priority. That means it's always the latest colour value you call that will be applied. ( the other solution for priority is HTP: Highest takes priority, like for intensity)
I hope this will help you,