adding a proper kill count

Hello so im using venkas bestiary script
Link:https://forums.rpgmakerweb.com/index.php?threads/bestiary-logbook-v1-8-updated-1-21-2014.32231/

and i want to use the kill counter in the script but as i havent real battles in the game because i am using the Xas script

the enemys are only events so i need a way to add manually a kill to the kill Count a note tag would be perfect
a script call like add_kill[X ,enemy_id] where x stands for the integer of the kills
i think that this is defined ind this peace of code : Line 684-701

Code:

#----------------------------------------------------------------------------
  # ○ new method: enemy_kill_count(enemy_id)
  #----------------------------------------------------------------------------
  def enemy_kill_count(enemy_id)
    kills = 0
    $game_party.bestiary.each do |entry|
      next unless entry.enemy_id == $data_enemies[enemy_id].shown_id
      kills = entry.kills
      case kills
      when Venka::Bestiary::Show_Elements
        entry.elements.size.times {|i| entry.elements[i] = true}
      when Venka::Bestiary::Show_States
        entry.states.size.times {|i| entry.states[i] = true}
      end
    end
    return kills
  end
end

ore in this section line 575 - 603

Code:

 #----------------------------------------------------------------------------
  # ● alias method: battle_start
  #----------------------------------------------------------------------------
  alias bestiary_kill_count make_drop_items
  def make_drop_items
    add_encounter_count
    bestiary_kill_count
  end
  #----------------------------------------------------------------------------
  # ○ new method: add_encounter_count
  #----------------------------------------------------------------------------
  def add_encounter_count
    dead_members.each do |enemy|
      rpg_enemy = $data_enemies[enemy.enemy_id]
      next if rpg_enemy.nil? || rpg_enemy.skip
      $game_party.bestiary.each do |entry|
        next unless entry.enemy_id == rpg_enemy.shown_id
        entry.kills += 1
        case entry.kills
        when Venka::Bestiary::Show_Elements
          entry.elements.size.times {|i| entry.elements[i] = true}
        when Venka::Bestiary::Show_States
          entry.states.size.times {|i| entry.states[i] = true}
        end
      end
    end
  end
 
end

but i do not realy know how to edit these parts to get the script call that i want

or if this is a to hard option it is also a possibility to make an spezific switch add a kill count when its on
its only more work for me than because i have to ad for everey monster a switch i hope someone understand what i want

also it would be awsome if youmeone can tell me if it possible to add a scroll function for this window

Code:

#----------------------------------------------------------------------------
  # ○ new method: create_description_window
  #----------------------------------------------------------------------------
  def create_description_window
    y = (@help_window.height + @enemy_bg.height).to_i
    @descript_window = Window_BestiaryHelp.new(@stats_window.width, y)
    @descript_window.viewport = @viewport
    @descript_window.width = Graphics.width - @stats_window.width
    @descript_window.height = Graphics.height - y - @bottom_window.height
    @descript_window.hide
  end

the status window of the screen has aswell a scroll function but i dont know how to add one