$1911

An "Add/Remove String on the Left" option would REALLY come in handy. As well as an "Add/Remove Line on the Top" option. Both options would be VERY useful and save a LOT of time, especially with larger patterns. Things like adding a border as an after thought or adjusting the starting position for better intro/outro would be no problem. Plus, you wouldn't have to restart the whole pattern from the beginning. :)