Running Mojave on 2 iMacs, 1 MacBook Pro and iOS V 12 on iPhone. Syncing iMessages on iCloud with all 4 devices. I find it laborious when deleting a conversation / Message that in addition to clicking the little "x" I also have to answer the question "Would you like to delete this conversation". That's a two-step process. I know that Apple wants you to be sure before deleting but I would like to see the iMessage app have a Trash folder, just like Mail, so if I accidentally delete a Message I can retrieve it from the Trash. Also, it' a nuisance to have to delete the Message 4 times = once on each of my 4 devices. I think Apple released and then quickly withdrew syncing iMessage with iCloud so you would only have to delete the message on one device. ??