Doesn't look like the Conversation Essentials plugin has an alert feature though, that let's you know that something was read by the person you sent it to, does it? I see that you can go into the conversation and check to see if they read it.
Most of the time overhere at XF I have a conversation with 1 single person. Then a checkmark would work great indeed.
I was wondering, how would you envision it working if you have a conversation with more then 1 person? I am not sure what the maximum of participants is in a XF conversation, but imagine it are 7 people for example. Then placing a single checkmark would not work anymore, because you would need 7 indicators. What would be a good way of solving/implementing that?
I feel like this should be implemented, but the user should decide whether or not this feature is enabled for them. So they can turn off 'Read' That way if they don't want the user to see if they've read the message or vice versa it won't be an issue.
I vote yes for this to be implemented. Se7ensins a site I get on that uses Xenforo has this implemented from an add-on but this would be great as a core feature. It's very useful and helps members a lot.