Change "restart" button to "continue"

During the Prose stage, there is a button called "restart". But when we press it, instead of restartimg the chapter, it seems that Sudowrite continues to write without erasing the beginning. The result is convoluted. Perhaps there should be two buttons, one to actually restart the chapter from scratch, and another to continue? Also there could be an option to pause automatically after each stride so we can read before continuing.