Option to search only for messages in Inbox or another single folder
At the moment the search function (eg. by sender or keyword) searches every folder on your account, which a lot of the time is great. However, it woudl also be useful to be able to filter the results just to find relevant messages (eg. by sender or keyword) just in the inbox or another single folder. Useful for when you are trying to find someting you know is in your Inbox or another folder you are searching through.