[font size=1" color="#FF0000]LAST EDITED ON Apr-26-02 AT 07:06PM (GMT)[p]in the editor, switch to tile mode.
Then, navigate to the directory containing the desired tiles using the sidebar on the left.
When you see tiles, select one and hold down the SHIFT key and click on several other tiles.
above the tiles, there is a line that says "tiles selected for placement:". This is the current tileset. somewhere near there, there should be a button labeled "save tileset" click this button and save the tileset.