Figured it would be useful to have the info condensed in one post. I don't run Mythic, so this is relevant to LFR/Normal/Heroic.
I assume you are specced into Chi Torpedo (CT). Other abbreviations used: Flying Serpent Kick (FSK)
You are a Windwalker monk and have access to a warlock gateway:
You can run any orb.
Grab orb --> click gateway --> FSK --> CT x2 --> deposit orb.
You are a Windwalker monk and don't have access to a warlock gateway:
You can run any orb except the 1st one.
At pull, before the 1st orb is even picked up, run up on the side you're assigned to (FSK --> CT x2 --> spin walk) and place your Transcendence at the deposit slot. If running 2nd orb, walk back to its spawn point, wait until FSK and CT are off CD. If not, just go when it's time and:
Grab orb --> take 2 steps --> FSK --> CT x2 --> Transcendence --> deposit orb.
You are a Brewmaster or Mistweaver monk and have access to a warlock gateway:
You can run any orb except 1st one, but it's best if you do the 3rd or 4th (tanking/healing requirements then are low/nonexistent).
At pull, before the 1st orb is even picked up, run up on the side you're assigned to (CTx2 --> spin walk) and place your Transcendence at the deposit slot. WARNING: Do not use the gateway on this prep run, or its cooldown may not reset in time. Then go to the orb spawn point in time and:
Grab orb --> click gateway --> CT x2 --> Transcendence --> deposit orb.
You are a Brewmaster or Mistweaver monk and don't have access to a warlock gateway:
You can't solo orbs. Get someone to help you.
Remember that on <=10 man heroic G'huun the debuff is only 2 minutes, same as on normal.
If you want to practise, LFR is your friend. There is no debuff there.