[Eventing Question] How do i make an event that lowers a level to a selected pokemon

I am trying to make an event that first allows you to select a live pokemon using pbChooseAblePokemon and then lower a level to the selected pokemon but i dont know how to do it.
If someone could help me i would appreciate it.

Try to check how RARECANDY works and put it to minus 1 instead plus 1 to level?

I've tried with the following code, but I get an error and I do not know how to fix it

poke=pbChooseAblePokemon(1,3)
pbChangeLevel(poke,poke.level-1,scene)
poke.calcStats



Pokemon Essentials Esp v16.2
---------------------------
Excepción: RuntimeError

Mensaje: Script error within event 12, map 89 (Centro Pokémon):

Exception: NoMethodError

Message: (eval):2:in `pbExecuteScript'undefined method `level' for true:TrueClass

***Full script:

poke=pbChooseAblePokemon(1,3)
pbChangeLevel(poke,poke.level-1,scene)
poke.calcStats


Interpreter:243:in `pbExecuteScript'

Interpreter:1606:in `eval'

Interpreter:243:in `pbExecuteScript'

Interpreter:1606:in `command_355'

Interpreter:494:in `execute_command'

Interpreter:193:in `update'

Interpreter:106:in `loop'

Interpreter:198:in `update'

Scene_Map:103:in `update'

Scene_Map:101:in `loop'



Interpreter:276:in `pbExecuteScript'

Interpreter:1606:in `command_355'

Interpreter:494:in `execute_command'

Interpreter:193:in `update'

Interpreter:106:in `loop'

Interpreter:198:in `update'

Scene_Map:103:in `update'

Scene_Map:101:in `loop'

Scene_Map:114:in `update'

Scene_Map:68:in `main'

PurpSoul said:

Code:

poke=pbChooseAblePokemon(1,3)
pbChangeLevel(poke,poke.level-1,scene)
poke.calcStats

Exception: NoMethodError
Message: (eval):2:in `pbExecuteScript'undefined method `level' for true:TrueClass

Click to expand...

That error says that poke is a boolean (i.e. true/false), not a Pokémon. You might want to double-check how to use pbChooseAblePokemon, it must be storing the Pokémon elsewhere (i.e. rather than returning it).

The wiki has some good examples of how to choose a Pokemon
https://essentialsdocs.fandom.com/wiki/Manipulating_Pokémon