How to do this, I understand the procedure is different from solid lifter engine, how so?

I understand that you are not supposed to have to adjust these. but still they need to be set proper initially.

Also I did a search, nothing doing there but a dead link that surely would have answered the question.

Had one in my Brat and ended up calling a knowledgeable Subaru guy who told me to adjust them to 1/2 turn beyond tight at tdc one cylinder at a time. I worked for me. Just tighten the adjuster until then pushrod will no longer turn and take it 1/2 turn tighter. You have to bring each cylinder to tdc individually.