Mattermost support for add bot user and share app(bot user, webhook slash command) to other channel or team like slack?

Already provided webhook and Slash commands, but do not provide bot user and don't share.
1. I want to customize bot user and share bot user. More channel or team can use the bot user.
2. User management support special user about bot (no password)
3. I already customize webhook or slash command, but don't publish app like slack. so I can't share to other channel or team.I must be re customized.