How to enable Hotbar and Hand preview in the Editor

We can enable the preview of the hotbar or the hand in the editor to see where Minecraft’s default HUD elements are displayed in order to create a new one.

To do this, we need to go to Edit → Preferences and enable Display Hotbar or Display Hand.

After clicking Confirm, we must refresh the editor by using /uui close and then reopening it with /uui edit (name).

From now on, the editor will display the additional elements (hotbar or the player’s hand).