Thanks for moving the inquiry here. I would like to make an action available in the menu that has other actions like edit, reply, quote, flag, unread, delete, etc. The action will have access to the message identifier and any children (replies). For instance, what you did here with my inquiry that I had posted on WebEx space. You had to copy my message from WebEx, come to this community space, log in, create and post the same text. Now if you had a message extension available (post to Community), it would have been done on a click of a button.
Here is the similar reference for MS Teams.