I added a menu option in file named "Import LVZ Tiles" which reads a simple text file and adds the lvz tiles. You have to re-import it everytime you open the map The text file looks like:
@rocks.lvz
#rocks_image0.png
0,0,192 1,0,192 2,0,192
0,1,192 1,1,192 2,1,192
#rocks_image1.png
0,0,192 1,0,192 2,0,192
0,1,192 1,1,192 2,1,192
0,2,192 1,2,192 2,2,192
#rocks_image2.png
0,0,192 1,0,192 2,0,192
0,1,192 1,1,192 2,1,192
0,2,192 1,2,192 2,2,192
#rocks_image3.png
0,0,192 1,0,192 2,0,192
0,1,192 1,1,192 2,1,192
0,2,192 1,2,192 2,2,192
#rocks_image4.png
0,0,192 1,0,192 2,0,192
0,1,192 1,1,192 2,1,192
#rocks_image5.png
0,0,192 1,0,192 2,0,192
0,1,192 1,1,192 2,1,192
0,2,192 1,2,192
#rocks_image6.png
0,0,192 1,0,192 2,0,192
0,1,192 1,1,192 2,1,192
#rocks_image7.png
0,0,192 1,0,192
0,1,192 1,1,192
0,2,192 1,2,192
#rocks_image8.png
0,0,192 1,0,192 2,0,192 3,0,192
0,1,192 1,1,192 2,1,192 3,1,192
1,2,192 2,2,192 3,2,192
This is how I implemented it (frmMain) There is 1 bug, it does not clear the old tiles if you reimport