Unable to configure the Resolution time to less than 15 seconds.
After creating a dashboard and adding a graph:
Right click graph -> Select "data options" -> Select "Miscellaneous" tabĀ ->.
It shows a resolution of 15 seconds -> Save the dashboard.
Then Re-open the dashboard for editing, set the Resolution time less than 15 seconds and save it. However, the Resolution set back to 15 seconds.