Welcomed feeback, I hope so. An outsider lookin in

If I got it right, do you want to meet somebody, who would explain you the complex mixer?

While I would really enjoy to visit the States just for that, I can't afford the plane...

But seriously, the mixer is not that complex!
Think about it as a simple calculation: the pages are the operands, the "mux" is the operator (actually I named that in the hungarian translation), and the result will go out to the actual channel.
There are some nuances of course, as the operands can be conditional depending on the switch, and they can be scaled and offset...

Probably we should start to explain from the other side: what an ordinary tx does to achieve things?

For example there is the question of throttle and pitch curves:
A beginner won't find them in the advanced gui.
You can say they can be easily implemented by a complex mixer, but of course he won't know how, because to implement those features he had to know how do they work, and he probably doesn't know that...

So first we should explain them how things work, and not about the gui itself, for example (assuming he knows about throttle and pitch in general):
The heli's receiver awaits the throttle and pitch values as two separate channel values.
However we control both values with the throttle stick only, because there is no separate control for the pitch.
But then how can we create two different values, he could ask? Because there are separate curves (called the throttle curves and pitch curves), both depending on the throttle stick as input, but since they have different characteristics (called a curve or the transer function), which make the two output different.
Furthermore, these curves/functions might depend on the flight mode (which is selected with a switch), so you usually can have as many throttle and picth curves as many flight mode you have.
Since the flight mode switch determines which curve is in use, you can switch the function of the throttle stick from controlling the throttle value (or both the throttle and pitch) to control only the pitch while the throttle has a fixed (or at least almost fixed) value.


Looks like my attempt turned into just as hard to understand...

Yes, but most people don't like to read long texts, because that is boring...