If you often post to the same set of accounts (for example all your brand's pages, or one region), save them as a group.

1. In Channels, open Manage groups and click Create group.
2. Give it a name, choose the accounts and, if you like, a color and a note.
3. When you create a post, pick the group to select all its accounts at once.

Deleting a group doesn't remove the accounts in it.