@one you know I don’t think there is any custom emoji on this one but I can add some. Mastodon lets you import them from other instances so it’s something I could look in to easily. Any suggestions?

1 - on the desktop client if you click the emoji button on the posts there should be a list.

2 - I think its client dependent. In Toot! I can’t find any emoji picker, but in Mast if I’m composing a post there’s an “Instance Emoji” selector.

3 - not AFAIK but you should be able to see them.