Sacred, you are right, it is always a good idea to give a newcomer basic advice. But you are just not reading the opening post well. He describes he successfully figured out to use env 3 to create a delayed modulation of the LFO. As I said in my post, everything is working as it should, the functionality he wants is just not present, and I explained exactly why: env 3 will go straight from delay to release phase. There just is no attack and sustain then, the keys aren't pressed anymore. Hence, only (incomplete) workarounds are possible.
(I am sorry, I'm probably coming over as an incredible smartass. I mean no disrespect, I actually learned a lot from your posts)
Another suggestion for a workaround: instead of using the sequencer as I described, you could use a slow square wave LFO to modulate LFO amount of the first. But again, as the LFO will begin its second cycle, it will turn the first LFO off again (now if they only had included a one shot option for the LFOs).