9 votesRichard Mander commented
Hi John. It's difficult for us to add multiple pictures to an email, due to limitations with the operating system. The easiest way to get multiple pictures in an email is to export them to your phone's Gallery and then use the Gallery to add them to an email.
7 votesRichard Mander commented
When in photo measure mode, you can pinch to zoom on the screen. When you do this, your adjustments for the corners of a rectangle (for example) will be more granular. Just make sure the + symbol is turned off so you don't accidentally add new lines or cutouts when trying to zoom.