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The Rolling Window Monthly Gadget allows you to see the number of matching issues for a number of months backwards.
It will group the number of issues matching the selected filters by the number of months specifiedthe last X months. 

For example, if the last current month was is Dec, and 3 a 6 months were selected, only the  trend was selected, it will display the trend of issues from Jul to Dec.

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In addition, there is an option to calculate the average and to compare it with the latest month. If the trend is increasing, it will display a red up arrow. If the trend is decreasing, it will display a green down arrow.

Usage

To present the information in the Rolling Window Monthly Gadget,

1. Define and save the JIRA filters
2. Insert the Rolling Window Monthly Gadget on the dashboard
3. Configure the user preferences for the gadget

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1. Define and save the JIRA filters

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1. Click on Add Gadget button on the Dashboard view to add a new gadget
2. The Gadget Directory will pop up
3. Enter Roll in the search box to filter the matching gadget gadget
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4. Click on the Add it Now button to add the
5. Repeat step 4 for each additional gadget required
6. Click on the Finished button to return back to the Dashboard

Configure the user preferences for the gadget

1. Fill in the preferences 
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   Preference	Description	Notes
   Saved Filter	The filter for searching the issue
   X Axis	The date field to be used for segmenting the issues across the months in the year
   Y Axis	The issue field to be used for dividing the issues into different category rows		Show Year	Whether to display the year in the table
   # of Months	The number of months to consider	Possible values are 3,6,9 or 12
   Include Current Month	Whether to include the current month. If false, it will start counting backwards from the previous month	Possible values are true or false
   Display Average	Whether to calculate the average and display the trend indicator	Possible values are true or false
   Show Totals	Whether to sum the totals	Possible values are true or false
   Refresh Interval	how often you want the gadget to update itself

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2. Click on the Save button to save the changes 

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