Option to check stand-alone emails in analytics

We should be able to track the analytics for stand-alone emails sent by manually going to the lead and clicking "Send Email".

I tested this yesterday, by adding my personal email, and sending an individual email to me through there; now in analytics it will say "1 Replied", but won't track any opens, clicks, etc…

This would be really useful because some cold-outreach is hyper personalized and individually sent for high-ticket offers, and then we should be able to track analytics for those too : )