Dear Piltdown Man:
Thanks for being in touch.
1. By LVLCH, do you mean pressing LVLCH botton or VNAV button? Because LVLCH botton causes normal LVLCH (open loop) and VNAV causes magenta LVLCH meeting the alt/speed constraints.
2. The FMS Departure speed page shows the following default data:
speed restriction: 200 Kts, altitude: 2500 ft., dist.: 4 NM.
3. But after 1000 ft., with speed selector at FMS mode when I engage AP and press VNAV, speed target maintains v2+10 kts (Magenta) and never accelerates. Even LVLCH button does not help. When I select MAN speed mode and select higher speed manually, say 200 kts, the plane accelerates as demanded.
4. Am I making any mistake? or that's a bug in the Feelthere simulation?