Free-fly: click the view to capture the mouse, Esc releases. WASD move, Q/E down/up, Shift x4, wheel = base speed.
Follow: F toggles (orbit with mouse, wheel zooms). Pick a subject in the panel.
Time: Space play/pause, N / Shift+N next/prev event, , / . step a frame, [ / ] speed. T trails, L labels, P prop labels, C avatar capsules, G level geometry (Shift+G see-through), H this help.
Hover a prop or player for info; click one to pin it in the panel.
Touch: left thumb = joystick, drag elsewhere to look, two fingers up/down to rise/sink, pinch for speed. Orbit mode: drag orbits, pinch zooms, two fingers pan. Tap a player or prop for info.