Permissions

holographicdisplays.command.<subCommand>

Each subcommand has an individual permission depending on its name. For example, the command /hd list requires the permission holographicdisplays.list. The main command /hd is accessible by everyone.

holographicdisplays.update

Receive update notifications on join if enabled in the configuration.

holographicdisplays.*

All the permissions combined, if your permissions plugin supports it.