Cannot set default search folder to inbox

The vast majority of my searching is not for a specific email but for all emails from a given sender so I can bulk-delete them from my inbox. Currently, I have to manually switch the search scope every time. The extra step of resetting the folder on every single search adds up.

Does Mailbox plan any time soon to either allow users to set a default search folder or at least remember the last folder I searched in so I'm not repeating the same correction over and over?

If not I will need to switch providers, because the inability to change the default search folder is costing me a significant amount of time on a daily basis.