Double sorting filter: unread OR star

[Username15]

Hi,

I am working with unread mails pinned to the top of my mailbox not to lose them if I receive many of them, before opening them for the first time. 

Also, I often star mails that I want to take care of later, and I would like to pin them also in a certain way to the top of my mailbox, together with the unread messages, again not to lose them. 

So, I think it should be cool to introduce double (or more) operators to filter mails, implementing the capability to select several filters, with something like AND, OR (and maybe others) combinations.

Then I would be able to pin mails to the top of my mailbox that are either unread OR stared. 

Thank you very much! 

[Jon]

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