> 1) Horizontal line only visible in the scheduler control
You can customize the CSS theme generated using the theme designer (https://themes.daypilot.org) and clear the style for the vertical line elements (*_matrix_vertical_line CSS class).
See also:
https://doc.daypilot.org/scheduler/css-classes/
> 2) Time frame should be in single row (Header)
Please see the docs:
https://doc.daypilot.org/scheduler/time-header-rows/
> 3) Tooltip open is very slow when mouse over the schedule event in the control. How can we trigger fast.
You can change the delay before the bubble appears using DayPilotBubble.ShowAfter property. By default it's set to 500 (ms).
> 4) Can we set the event bar size dynamically. Client request is fix the event bar to the particular time frame instead of occupied full cell.
Please see the docs:
https://doc.daypilot.org/scheduler/exact-event-duration/
> 5) Expand and collapse option for each row is required when multiple schedule assigned at same time in the control.
Please see the docs:
https://doc.daypilot.org/scheduler/concurrent-event-groups/