Action bar

Paper's normal actionbar only lets you show one message at a time, so if two parts of your plugin both want to show something, they'll overwrite each other. ActionBar fixes that by letting you show several named messages at once, which get merged together automatically.

ActionBar.actionBar(player, "cooldown", "Ability ready in 5s".red())
ActionBar.actionBar(player, "status", "In combat".gold())

Both messages will show at the same time, separated by a |, and each one disappears on its own once its time runs out.