The JMX Console in JMC provides two ways to narrow the visible range of data in live graphs:

• Via the "Show" pop-up, which provides a group of preset deltas of "last N time units". Examples: "Last Hour", "Last Week". The graph continues to update.
• By dragging a specific delta range (begin ... end), which produces a view of the graph (now - begin ... now - end). The graph pauses updating, but can be restarted to cause the view to slide across incoming data.

I seek two options for more accurate view configuration:

• A "Custom" option to "Show" that would allow me to specify how far back the view should go (a "last N" delta outside the preset options). Bonus points for including an end time field to produce the same effect as dragging but with perfectly accurate time deltas.
• An "All" option to "Show" that would show all acquired data as a view that compresses horizontally over time.

The custom option would be suitable for live monitoring a time delta not supported by the presets (example: "last 12 hours" when the presets have no granularity between "last 10 minutes" or "last hour"). The "all" option would allow a continuous view of all data without updating the show range.