Is there a way to merge filters but not cross in Backlog view?

[[DTI] Alexey Panteleev]

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[Nic Brough {Adaptavist}]

No, there's no "merge" function, but it's really not hard to copy one filter, add an "or" to the end of the other one and paste the first one into it.

Or, some add-ons give you a JQL function for "issue in filter (<name other filter>)"

I don't know what you mean by "cross in backlog view"

[[DTI] Alexey Panteleev]

Now filters in backlog work like "and" operation. 
 And there is an "or" operation for Assignee field in new jira.

I want "or" operation for quick filters too.

[Nic Brough {Adaptavist}]

There's no way to do it.  There are a couple of requests already raised for making AND quick filters, but at the moment, your only option is to make another quick filter that combines the filters you want.

[[DTI] Alexey Panteleev]

How can I request Jira dev team realize this function?

[Nic Brough {Adaptavist}]

They ask you to raise an enhancement request at https://support.atlassian.com/contact

But if you do, you'll find it closed as a duplicate.  You would be better off voting on the existing ones in https://jira.atlassian.com - I'd expect to find them in the search https://jira.atlassian.com/issues/?jql=project%20%3D%20%22JIRA%20Software%20Server%20(including%20JIRA%20Agile)%22%20and%20text%20~%20%22quick%20filter%22%20and%20text%20~%20merge

[[DTI] Alexey Panteleev]

Thank you very much!!