An setting u can turn on so that if u start writing something a TEMPORARY straight line appears underneath your text that u can then write on. That way even if u are writing on blank paper (for example powerpoint slides), you can still write in a straight line. When u stop writing the line disappears (after approximately 5 seconds so you can lift your pencil up for a space between words in one sentence)

This would be a very small but truly amazing feature!