Help setting up paraglider model

Hi all,
just finished building a motor paraglider and as inexperienced user I wonder what would be the best way to set up the controls in deviation.
There are 3 servos for:

1. Left brake (fully released in normal flight)
2. Right brake (fully released in normal flight)
3. Accelerator (fully released in normal flight)

and one ESC.
I imagine these mappings:
Right stick x axis should steer by pulling/releasing the left and right brakes, simple elevon config I think.
Right stick y axis 'pull' (0-50%) should simultaneously pull both brakes 0-100%, 'push' (51-100%) should leave the brakes released and pull the accelerator 0-100%.
One switch for flight speed should go between trim speed (best glide) and lowest descend (around 20% brakes for thermaling and slow flight). In this mode pushing the elevator stick should start by releasig the 20% brakes first, then start pulling the accelerator.
One mixer should mix some accelerator to throttle (left stick) input using a custom curve to get the angle of attack adjusted for flight with or without motor.
Before starting a new round of trial and error config, I hope somebody can give a few hints on what would be a reasonable way to set up those functions.
Kind regards

Hi mm-de, sorry been snowed under (still am), so quick reply only at the moment. Sounds interesting, do you have a link / pic of the build?
The main point to remember when programming mixes in deviation is to look at it from a Channel perspective, and that each channel is independent of the others. So, think purely in terms of "what should happen to my left brake when I use this input", then once you have that sorted out, copy it (and maybe reverse some) of it on your right brake channel. Then sort out your accelerator (a servo pull line?)

You'll need to use Complex mixers, you may as well dive straight in and start getting used to them from the get-go. Read the manual and just try some very basic mixes, just to see how it operates; essentially each "page" builds on the preceding pages (mixers), and you can use switches etc to enable/disable certain pages.

For the brakes, check out the curve types of ">0" and "<0", move your sticks to see how the values react on the graph. eg. any "Left" x input should only increase/decrease the left brake channel, any "Right" x input should only increase/decrease the right brake channel.
Then on a new Page, ADD the right-stick y-axis input, again using a >0 or <0 curve so the brakes are only applied when you pull. For pushing, do the opposite on the Accelerator channel.

That'll have to do for the moment

Found it hard to find similar builds online, the Hacker Paragliders seem to have an accelerator as well but I couldn't find detailed photos, so I just tried to scale down and simplify what is done on a 'real' paraglider.
I can post some pictures when I get back home in two weeks, will try your steps and come back with more specific questions if necessary. Thanks for summing up the concept, sounds achievable now

First setup is working quite well, I did 4 pages on each left/right servo:
1. maps steering direction to channel
2. maps elevator (brake) to channel
3. increases scale of 1.
4. increases scale of 2.

I had to do 3 and 4 because throw did not reach the maximum of the servos.
Is this the correct way to increase throw?