Q Light Controller+

I programmed one of our songs into QLC+, and I'm not sure if I'm using the best way... I have everything Midi-Controlled via Loopmidi, i.e. I make a scene/sequence/chaser, and trigger that via a "button" in the virtual console. One thing I noticed: if for example I have a function 100% red that i switch on, and I have a function 100% blue, to change between them, I also need a "everything off" function (which I also realized with a button and Midi-note assigned). So obviously the sequence is like that:
100% red on
all of
100% blue on
this destroys the timing a bit, because there's always a "everything off" break before it continues (also I have a feeling there's some delay, everything seems to come on a bite late, latency through Midiloop maybe?)
Is there a easier way to switch between things, without having to switch off the previous one?

You could use a Solo Frame : https://docs.qlcplus.org/v4/virtual-console/solo-frame

that sounds cool, thanks a lot... my other bandmembers also asked if there isn't a "momentary" option, i.e. as long as the Midi note is active, the light is
With solo Frames I could create a Frame for each song, so there's also some logical organisation

You can use a "Flash Button" (https://docs.qlcplus.org/v4/virtual-console/button).

On button press... Flash Function: You can "flash" the attached Scene when you keep the button pressed. If another type of Function is attached to the button, nothing happens when you click it.

As quoted: only works with a scene.

I could only point out to Lars that I'm convinced that if he used the full power of QLC+, his workload on stage would be greatly reduced.
Build proper scenes, build proper EFX and RBG matrixes.
Now put these functions inside a chaser per song and control the chasers with your external midi controls. Latency will be almost zero since its QLC+ now in control of the timing.