You can assign users you trust as moderators. You can also give them different permissions so that they can perform the actions you want. To assign users as moderators, go to My Community, select the Moderators tab and grant the permissions you'd like them to have.
For example, if you give a moderator permission to Gift packs, they will have an option in the side menu to give away chests from your collection. The menu of a moderator with full permissions is almost identical to that of the streamer.