There is another red form of Chenrezig known as Khorwa Dongtruk (sometimes written "Korwa Tongtrug"). He is usually depicted with two arms, and is standing. It was the empowerment of this form that HH the 17th Gyalwang Karmapa gave to 20,000 disciples who congregated at Tsurphu a day or two after he was enthroned and his hair was cut at the Jokhang in front of the Jowo Rinpoche.
Does anyone have detailed information on this manifestation of Avalokita?
Thus far I've been able to ascertain that it was Thangtong Gyalpo who gave the wang, lung, and tri of Guru Chöwang's terma to the 6th Karmapa, Thongwa Dönden. Apparently this occurred only after some of the monks at the Great Encampment had attempted to stone Thangtong to death and failed, upon which he was ushered into the Karmapa's personal tent.
Could be Korwa Dongtruk from Chokling Tersar or some other treasure lineage. ChNNR give this teachings from both Adzom Drukpa and Chokling Tersar.