Hi here is how to change editor size.
Change your name of script.rxdat to any name and then change editorscript.rxdat to script.rxdat then open your project and resize in spriteresizer. And just rename your script like they was.
i posted on pokemon scarlet, i wanted to join as a pokemon spriter. (reply to my post, not this one and im letting you know cause i want to do something immediatly!!!)