I suggest a "custom timespan" feature.

Consider that I need to investigate what happened in my environment at a specific time and date, and I need to check several items latest data view, a few screens, a couple of graphs etc. I will need to dial each to the specific timespan I need to investigate.
Instead, I would like a "Jump to timespan"-feature that quick-sets my time filter, so I can dial it in one time and just reuse that.
Also very helpful when screenshoting graphs for a custom report/mail to someone, so all graphs can have exactly the same time span configured, and therefor are suitable for compares and correlations.