Spaghetti Legs, thaks for reply!
I the other link won't open. I checked Tears for gears content, but could not find images during installation.
The brass washer has its own place, where it fits nicelly. I also found exploded views, there is a washer just next to baseplate.
Now the mushroom piece won't go into where, I believe, it should go. Even without other shifter's pieces the "mushroom" would go until the keyed part leans against DT flats and any spinnig around does not help to seat it. It spins freely if it is not on DT flats, so I think it shoulg go deeper. In this position shifter would be just spinning around DT boss not engaging indexing ring.
I stil can't attach pictures, but I updated my album...