Setting Pattern Length

You may want to make settings for Pattern length, i.e the number of steps the pattern should play before repeating:

The "Steps" spin controls are used to set the number of steps you wish the pattern to play.

The range is 1 to 32. You can always extend the number of steps at a later stage, as this will merely add empty steps at the end of the original pattern. You could also make it shorter, but that would (obviously) mean that the steps you remove won't play back. The steps you remove aren't erased though, if you set the step number back again, anything recorded in the previously removed step locations will be played back.