You can add more photos whilst browsing your Calendar! When viewing your Calendar, you can click on 
button on the right side of your calendar. After clicking on it, just click on the photos without the check-mark to add them to your Calendar.
In case you want to add photos that doesn't show on the selection, no need to worry! You can always scroll all the way down and click on the 
button and you can select any photo saved on your device!
If you have any questions, please don't hesitate to contact us!