Ability to explicitly re-mark messages as unread

[ara4n]

So you can use the 'jump to unread messages' to go back and find them earlier. Useful if you accidentally scroll past a bunch of stuff but want to undo your 'reading' action. In practice, I strongly suspect that bookmarking messages by starring them would be a more intuitive UX, especially as our 'Jump to first unread message' UX is very hard to use currently, but just as an email client has 'mark email as unread' which can sometimes be very useful, perhaps we should provide the same too. In fact, perhaps we should use the email 'read' model to track which messages have been read and which haven't been...

[t3chguy]

perhaps we should use the email 'read' model to track which messages have been read and which haven't been...

For both RM and RR?

[turt2live]

Related/possible dupes:

• Suggestion: Allow manual reset of unread message display (number on the icon).  #4586
• https://github.com/vector-im/riot-web/issues/4406
• Don't immediately clear jump-to-RM after jumping to it #2452
• [UX] Wait a little before considering the room as read #6386
• https://github.com/vector-im/riot-web/issues/2938

[ara4n]

huh, yeah, dup https://github.com/vector-im/riot-web/issues/4406. hadn't seen that one before.