Free fly (default)
  W A S D   move / strafe (height fixed)
  Right-drag   look around
  Shift   3× move speed
  E / Q   rise / descend

Cylinder movement (World → Movement)
  ← → or A D   rotate around cylinder
  ↑ ↓ or W S   move along look
  E / Q   rise / descend
  Shift+arrows   look around
  Ctrl   3× move speed

Flat map (bottom-right button or World → View)
  whole cylinder unwrap from above

Interact
  Click   inspect object under cursor
  H   hide / show controls panel