I need to be able to tag an open email as unseen

Hey.com has changed how I use email, in most ways for the better but in others worse.

My biggest worry when using hey.com is getting half way through reading an email in my imbox and needing to click off quick to do another task, be it within the Hey environment or not.

When you click off an email while in imbox the email automatically drops down into the abyss below and becomes just another email. Very quickly new emails will appear and block its view. 

Unless I remember to go and search for the email, it could be lost forever.

When using conventional email applications like Mac Mail the email would just remain in my inbox until I picked it up again - I am not one of those people who have thousands of emails sitting idle in their inbox - I never have more than 10-20 emails, my inbox is my to-do list.

You could argue that I could simply move the email to the the set aside board. This may work but I tend to use this board more for long project storage. Maybe I should move it to reply later.A possibility but that isn't the purpose of that list and if I keep dumping stuff in there that doesn't actually need a reply from me, then it goes against its purpose.

Anyway I don't like workarounds, there has to be a solution to this issue. I shouldn't be nervous using an email platform, scared of missing an email. Hey doesn't have the ability to star an email or snooze it for later. I have thought about adding a note but then I might have to scroll down endless emails to look for the noted emails, as there isn't a way to filter the view of my imbox.

One solution would be able to mark an email as unseen so it goes back to new for you. I know this is already available but it isn't possible from within an open email. You have to close the email you are reading, find it from the list and then mark as it as unseen. That's long winded and open to forgetfulness.

Come on Hey, I can't be alone with this worry and frustration can I?