Following the Pokemon Essentials doc wiki is enough.But this tool really saves time.Hope to have a new editor like this
 
	1 Line 38 of "PokemonSystem.rb" 
 
	   "!havedata" to "true"
 
	2 Line 319 and Line 320 of "Settings.rb" 
 
	   Remove comment symbol and edit as you need
 
	3 The e19 group has changed a lot.Repair it or edit each line of txt files