When you upgrade, you will ONLY PAY the DIFFERENCE between the new package and the current.
Note: Only the owner of the event can upgrade an event.
MagicFind Upgrade: MagicFind only processes photos that are uploaded AFTER the add-on is active. If you get the add-on later, all the photos uploaded before the add-on will not be processed, and hence, will not be searchable. DO NOT PURCHASE MAGICFIND IF YOU WANT TO USE IT ON EXISTING PHOTOS IN YOUR EVENT.
Steps
From the host account, go to the main event view - where you'll see your event analytics. If you're in a gallery/album (viewing photos & videos), click the back arrow next to the gallery name to exit into the main event view.
Click the Menu button at the top right (purple circle with 3 white lines) to open the "Event Menu"
Select "Upgrade" from the menu list
Select the new package you want to upgrade to. If you only need to add MagicFind, simply click "Continue" without picking a new plan, and then click the "+ Add MagicFind" button
Click the "Checkout" button to proceed with payment.