wider inbox pane
Would like to option to default to "All" instead of "Priority". Seems like new mail keeps changing back to "Priority". Also, for people with wide monitors (21:9), I would like to increase the width of the inbox list to be close to 50/50 of the overall screen width. Currently, the width of the inbox can be expanded, but only to around 1/5 of the overall screen width, leaving the preview panel too large.

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We encourage you to read at the top of the Uservoice header (forum). There we provide What’s New, Coming Soon and some Tips. There we mention how to disable Inbox Categories: All, Priority, etc. Definitely read those as we update them with useful information. Thanks.