Calendar & Timeline — Hours, lanes, and dragging events around

When the date field behind the calendar is set to include a time (a switch on the field, in Edit fields), Day and Week draw an hour grid and put each event where it actually falls, instead of stacking everything into an all-day strip. • Drag an event to move it to another time or day. • Drag its lower edge to change how long it runs — which writes to the view's end-date field. • Both snap to sensible increments, and an event dragged across midnight rolls its date properly. • Records with a date but no time stay in the all-day band at the top, so nothing is drawn twice. Day view splits into lanes when the view has a lane field set — one column per person, room or machine. That's the rota read: who is on, and when. Month and Agenda stay as they are on purpose. Thirty hour grids side by side is thirty columns of slivers, and an agenda is a list where a time is a label rather than a position.