AmalgamAsh succinctly explains how "switches" work. Although the video targets Smile Game Builder, the same applies to other RPG making software.
Video: How Do RPG Making "Switches" Work? (Global, Local Switch Explanation and Examples!)
Smile Game Builder’s "Local Switch" is the same as RPG Maker’s "Self Switch". Smile Game Builder uses 1 Local Switch and RPG Maker has 4!
I’ve been working on a SMILE GAME BUILDER game, Quietus, on and off for some time. I gave Amalgamash permission to do "progressive updates" videos.
Quietus v0.2 Update Video
This video focuses mainly on the menu for v0.2 (although he erroneously titled it as v0.3).
There Are Bugs!
I’m aware of the bug where the map/character moves in the background with the menu. That has since been fixed.