Merge last message with existing reply thread
Often I find that I inadvertently start a new thread instead of replying to an existing thread. I blame this in part on the UI design and would like to see that fixed.
However, for this feature I'd just like an easy way to fix it after the fact. Currently I can copy the message I just typed, pasted it into the original thread and then delete it if I'm fast enough and copy/paste wants to cooperate. I'd like a feature to do the same thing but automatically. I'd like an option on the reply line context menu for the thread the message should have gone into to the effect "merge last message". This would just take the last thread I typed into (which is the new thread accidentally created) and tack it onto the current desired thread.
Perhaps a simple ability to drag things that have already been typed in a new conversation thread and drop them on the conversation they belong in. I'm regularly starting a new conversation with the intent of replying. I'd really love for it to be brain dead easy for me to "attach" or merge it to the thread above. Even better would be to allow me to suggest and flag that merge when someone else does it so they can click a checkmark or approval.
Marcus Diddle commented
Agreed, not sure on the actual best way to address this situation, but it's incredibly common to see people post what should have been a reply to the last thread as a brand new conversation. Part of this, as indicated by the OP, is the UI design. It's entirely too easy for new users to confuse the two areas where they can type (in spite of the clearly labeled REPLY and START A NEW CONVERSATION indicators). But definitely need a way to merge two separate threads into one.