As well as running one off searches, you can save your Enhanced Search JQL queries as filters. Saving your queries as filters allows you to use Enhanced Search JQL functions in other JQL fields.
Enter a Enhanced Search JQL query.
Check your query is returning the desired results before continuing.
Click Save as Filter. This opens the Save Filter window.
Enter a Filter Name. This name must be unique.
To synchronize your new filter on creation, toggle the Sync Filter option.
New filters are not synchronized on creation by default. All new filters will be synchronized after the default interval of 5 minutes when the Sync Filter option is selected in the Filter Creation screen. If the Sync Filter option is disabled, the filter does not automatically sync and must be manually synced from the Search screen using the Sync Filter button.
Next, chose who to share the filter with, there are three options: share with all, share with a select user group, or share with a project:
Checking Share With All shares the filter with all users logged into the Jira Cloud instance.
Entering one or more groups under Choose Groups, shares the filter with all members of the selected group(s).
Selecting one or more projects under Choose Project, makes the saved filter available within the selected project(s).
To see all saved filters, click Jira Software and navigate to Issues and Filters→View All Filters