When performing the Nine Purification Breaths (I have it from a separate source, but it is close to the one described by Tenzin Wangyal Rinpoche in Healing with Form, Energy, and Light) the position of the energy channels depends on whether the individual is male or female.
It is described as:
In women the right channel is red and the left is white. In men the right channel is white and the left is red. The central channel is blue in both men and women.
The process first removes obstacles linked with male potencies and then obstacles linked with female potencies, breathing in through the red channel first and out through the white, then in through the white and out through the red.
Several people I know identify as agendered, genderfluid, or bigendered or otherwise genderqueer. I also know several people who are various forms of intersex.
For these individuals, is there a good way to adapt the practice (along with similar practices)? Alternatively are there adaptations for other practices that might be applicable (such as alternations made for ubhatovyanjañakas and paṇḍakas) or good rules of thumb for approaching these issues?