Gadget Configuration
Dashboard gadgets must be configured using the following settings:

Selects what data to display in a line chart. Ideal burn is shown with a dashed line, while real is shown with a solid line.
Sprint gadget-specific settings

Specifies whether multiple sprint charts are shown separately for each sprint, or combined into one chart.
Filter gadget-specific settings

Chart start date (for filter dashboard gadgets) - specify this date if using filter dashboard gadget type. This date is used for ideal burn calculation.
Chart end date (for filter dashboard gadgets) - specify this date if using filter dashboard gadget type. This date is used for ideal burn calculation.
JQL filter

Data supplied to the app can be filtered using JQL filters, with the gadget supplying some JQL presets. If you are running Jira Cloud and want to use Adaptavist ScriptRunner JQL functions you should save them and use them as synchronized filters instead via JQL - filter = “enter name or id of the filter“
Advanced Settings
Working days - non-working days are excluded from charts, only days checked here are displayed.
Date format - date format specified in Moment.js format.