for those of us who daytrade as well as long term trade, we sometimes access to intraday graphs of the shares.

for example- for any share, we should be able to pick any recent historic date, and see the intraday graph of that date, for a given share.
(e.g.for hong kong shares, if I wanted to see an intraday graph of a share on july 8th, then the intraday graph from 9.30am to 4pm, should be visible , for that date of july 8th.

that way I can analyse intraday grpahs of most dates in recent history).

if u could map options and warrants onto the same graph as the underlying share (for intraday graphs as well), that would be even better