npc command
What does it do?
It helps you manage the NPCs.
Make sure you have selected the NPC before doing edits.
Creating
/npc create <name of the NPC> - Creates a Taterzen NPC and selects it.
Removing
/npc remove - Removes the selected Taterzen NPC.
Teleporting
/npc tp <destination> - Teleports the selected NPC to the desired location.
* <destination> can be an entity or a set of relative / absolute coordinates
Listing
/npc list - Lists available (loaded) NPCs.
Selecting
You can select NPCs by their ID, name, UUID or based on proximity and look direction.
Note: The ID means the list index number which is shown when you run the /npc list command. 
(The first number before the name.) Contrary, the UUID is the universally unique identifier
as used internally by Minecraft to uniquely distinguish between entities. 
(See Minecraft Wiki: https://minecraft.fandom.com/wiki/Universally_unique_identifier )
Id
- Run 
/npc listto view the IDs of available NPCs. - Run 
/npc select id <ID>to select it. 
UUID
- Run 
/npc listto view the list of available NPCs. - With the command prompt (the chat) being open, hover with the mouse over 
(UUID)after the name of the NPC you want to select. - Click on the 
(UUID)text in the list. - The UUID of your NPC will be displayed in the chat input. Select it and copy it to clipboard (usually CTRL and C on Windows.)
 - Run 
/npc select uuid <UUID>, paste the<UUID>from clipboard (with CTRL and V on Windows). Alternatively use one of the tab-completion suggestions. - The Npc is then selected.
 
Name
- Run 
/npc listto view the list of available NPCs and their names. - Run 
/npc select name <NAME>to select your desired NPC. Alternatively use one of the names from the tab-completion suggestions. 
Note: In case the name of your NPC contains whitespaces (e.g. something like "Steve the Dragonslayer") make sure to 
enclose the name in quotation marks. In our example: /npc select name "Steve the Dragonslayer". Without the quotation 
marks the NPC won't be selected.
Note: If you have more than one NPC with the same name, no NPC will be selected and an error message will be displayed.
Distance
- Stand in front of the NPC you want to select.
 - Run 
/npc selectto select it. 
Editing
You can change many aspects of the NPC, e.g. its entity type, skin, pose, name, messages, right-click actions etc.