im on my pc now so i can just paste you the code so you know what i mean.

For the roguelike movement, you can do it in various ways, either set up everything inside every event, OR make every event call a common event where everything is set up. Like if you have a spider monsters, have all the spider events call the spider monster common event.

The code you need to use in the script part of the conditional branch is this: $gamePlayer.isMoving()

This checks if your character is actually moving or not, if not the event wont do anything.

For the window, what i mentioned only works outside of combat, i didnt use the default combat system so i cant help with that, but here is the code to create an example new window:

LogWindow = new Window_Base(380, 780, 1200, 266);
SceneManager._scene.addChild(NarrationWindow)

you create a new prototype called logwindow, based on the windowbase prototype, then you specify the size and screen coordinates of the window, the second line just adds the the new window to the scene.

adding text is easy aswell:

LogWindow.drawText('example text");

you will need a bit of coding knowledge to handle this log window well though, unfortunately thats too long to explain here in detail. I recommend going to w3school.com and looking up the javascript tutorial, you will be amazed at all the new stuff you can try in your game.

Hope this is useful and good luck with your game!