Uploading emojis with link

Would be helpful if we could upload emojis through a link, or have a way to add emojis to a server by right-clicking them in another server.

If you don't understand, basically what I mean is that we can upload emojis through a link, or by right-clicking an emoji in chat from another server and letting us choose a server we have Manage Emojis on so that we can easily upload emojis from other servers.