fixed bug with modifying elevation layers which are not drawn
fixed bug with modifying elevation layers which are not drawn

markraz/vtp,markraz/vtp,nakijun/vtp,markraz/vtp,seanisom/vtp,seanisom/vtp,seanisom/vtp,markraz/vtp,nakijun/vtp,nakijun/vtp,nakijun/vtp,markraz/vtp,seanisom/vtp,nakijun/vtp,seanisom/vtp