Rotate Texture key for Texture Tool

Now that you have made this awesome texture and coloring tool system... you may be taking it further, or not, but I wanted to drop this here anyhow:

Pressing "Home" or "End" with the texture tool out, will rotate the texture (as seen in lower right hand corner) so when you spray it on, it is in a different rotation.

There are some blocks I cannot rotate right, to get the texture to be at the right angle. So, the ability to spin the texture would be a pretty cool thing to have.