// create_button(xx,yy,width,height,flag,string,sprite,border);
with (instance_create(-200,-200,oEditorButton)){
button_width = argument2;
button_height = argument3;
button_x = argument0;
button_y = argument1;
button_flag = argument4;
button_string = argument5;
button_sprite = argument6;
button_border = argument7;
}