Your command is there, you just need to scroll down
These are the lines of code from the Maker's Source Code you may want to alias to change the windows's height:
Code:
Scene_Options.prototype.maxCommands = function() {
// Increase this value when adding option items.
return 7;
};
Scene_Options.prototype.maxVisibleCommands = function() {
return 12;
};
Example:
Code:
const alias = Scene_Options.prototype.maxCommands;
Scene_Options.prototype.maxCommands = function() {
return alias.call(this) + 1;
}