Here is a prototype double y axis chart. Is this what you have in mind?
Another option based on adamgreco's suggestion would be to have multiple
metrics trended on one chart but on the same scale. Also, the hybrid
would be to have 2 y axis and have multiple metrics and choose which
scale they will be plotted on. These are just all ideas. What are your
thoughts on this?
@hilamonster I agree with you that cross department calendar events are
valuable. My suggestion was strictly cosmetic. If the calendar events
are moved from the user level to the report suite level, you might
change from a few per user to 50-100 calendar events per report suite,
for example. I am guessing that with the current implementation and
possibly any implementation, the chart would not look good with 100+
calendar events. So my suggestion was more that the user might want to
hide the cal...
One thought. If you have it associated to a report suite, then charts
could become cluttered with calendar events created by multiple users.
For the users that don't create calendar events, there may need to be an
show/hide option added.