[RMVX ACE] QUESTION ABOUT YANFLY'S JP MANAGER

I have a question about Yanfly's JP Manager.
The script works very well so far but I face a small problem.
After each battle,I always have to press a button twice to shut two windows.
It's kind of a problem to press the button twice every time and I want to put all the messages to one window.
So please tell me how I should rewrite the script.

Yanfly's JP Manager
https://github.com/Archeia/YEARepo/blob/master/Gameplay/JP_Manager.rb

Thank you for your advice!
I'll look into it.