The TILESET EDITOR in sde

Okay in the tileset editor there's fill, fill alpha, copy, paste, undo, rotate CW, rotate ACW, flip horz, flip vert, tile properties, insert tiles, append tiles, replace with .i32, insert .i32, append .i32

But what does all this mean?

Fill

Fill the current tile with the selected color.
Fill alpha
Fill the current tile with the selected alpha level.
Copy
Copy the contents of the tile.
Paste
Paste the copy of the tile into the tile space.
undo
Undo changes to the current tile, reverts to saved version but this option is lost if you change the tile.
rotate CW
Rotate the tile clockwize.
rotate ACW
Rotate the tile anti clockwize.
flip horz
Flips the current tile horizontally.
flip vert
Flips the current tile vertically.
Tile properties

Reflective
To make a tile reflect it needs to have alpha levels attached, 100% alpha would mean not reflective, 0% alpha would mean really reflective.
Animation
To set up an animation you have to select the next animation in the sequence. To make a continous animation you have to loop it back to the orginal tile.

Insert tiles
Insert an amount of tiles, into the tileset.
Append tiles
Add tiles to the tileset.
Replace with .i32
Replace the tileset with an i32 image.
insert .i32
Insert an i32 image into the tileset.
append .i32
Add an i32 image to the tileset.

Other notes

Right clicking on the tile area will select the color you click on.
Scrollbar along the bottom of the tileset editor is for viewing other tiles in the tileset.