How do I add my own NPC?

Hi everybody. I have a question about adding my NPC to the game via Booster's Lab? I would be very grateful if you could help.

 

That's a bit of a vague question that could go all kinds of ways.

Do you mean to place npcs/entities in a map? I believe you press the i key in entity mode after selecting what you want to place.
Do you want to just have npcs like already in the game but with a different lick of paint? Messing around with spritesheets is probably what you'll be doing.
Do you want to make custom npcs that behave in ways no other npcs do? That's gonna be a lot more complex.

 

Do you want to make custom npcs that behave in ways no other npcs do? That's gonna be a lot more complex.

...Yeah, for that you're either going to need a knowledge in ASM hacking if you're working on freeware, C, C++, or Lua if you're using AVA/CSE2, Rust if you're using d-rs.

Or maybe you don't want to use any of that and want to use npc.tbl that's available through the Entity Map Editor:

 

Mint I probably want to add my own npc more
Serri npc.tbl in terms of Edit npc.tbl in Booster's Lab?

 

I probably want to add my own npc more

Define "more", because it's either you want your own npc to be more prominent (press "i" to insert in a map), you want to add in custom npcs (see guides), or you want reassurance that the npcs in the game are yours (even Paint can do the job).

npc.tbl in terms of Edit npc.tbl in Booster's Lab?

I'm sorry, those screenshots were taken in Cave Editor. Here's Booster's Lab.