I assumed that both the view and panel had to be positive values because the default view is set at zero and if I make the side panel a negative value it hides behind the main view. So I set the main view and side panel as negative values and the mini map as a positive value, however, I still lose the side panel under the main view...

Code:
#include <acknex.h>

BMAP* panel1 = "metal_texture.jpg";

VIEW* main_view = 
{  
	layer = -2;
   size_x = 3000; 
   size_y = 2500;
}

VIEW* mini_map = 
{  
	layer  =  1;
   size_x = 300; 
   size_y = 250; 
}

PANEL* side_panel = 
{   
	layer = -1;
   bmap  = panel1; 
   flags = SHOW;  
}

function main()
{
	video_mode = 12;
	video_screen = 1;
	level_load(""); 
	//
	while(1)
	{
		if(key_esc) sys_exit(NULL);
		//
		mini_map.pos_x = screen_size.x - mini_map.size_x;
		mini_map.pos_y = screen_size.y - screen_size.y;
		//
		side_panel.size_y = screen_size.y - screen_size.y;
		side_panel.pos_x = screen_size.x - (side_panel.size_x); 
		//
		wait(1);	
	}
}


PS. Thanks for being helpful Superku! It's very much appreciated laugh