What is "Select filter" in "Single Level Group By Report"

[Manoj Jyotishi]

I was trying to create a "Single Level Group By Report". I don't understand what do I need to put in "select filter"?

I just want all the issues in my project.

[Alexey Matveev]

Filters let you select only issues you need for the report. You need to create a filter and choose it there:

https://confluence.atlassian.com/jira064/using-filters-720416526.html