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The main idea is to avoid a situation when everyone posted his estimates in the issue comments, making an issue dirty, like in the example below:

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With . With the Add-On, people estimate issues with the specially designed interface, and then the results can be exported to the issues:

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1. Someone creates a game (and becomes the game admin)
2. Game admin then announces for other participants that there is a game set up, presumably with a certain deadline
3. During the day (or a week, depending on the deadline) participants join the game and estimate all issues there
4. When the game admin decides that it is time to summarise the estimation, he then checks the estimates and decides which value should be exported

How to Access Add-On Page

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1. Set resulting value in the "result" input
2. Select export field (usually a Story Points field or the comments field, if an issue doesn't support Story Points)
3. Click Export