Since Aura is great for sharing, the Aura App allows you to easily send photos to multiple frames (that you are invited to) at the same time:

1. Open the Aura App and tap on the yellow "Add Photos" button
   
   
              
2. Keep "Photos" (Android) or "Camera Roll (iOS) selected to pick individual photos  from your device's photo library or tap on it to change the photo source and see - and add  - individual photo albums.  
   
                                                

3. Tap on the photos that you would like to send to your frames. A checkmark will confirm your selection.
   
   

4. Then, tap on the "Add to xxxx" button to open the frame selector: 
   
   
   
   
5. Select all the frames that you would like to add your photos to: 

        

Once you have selected all the photos and frames, tap on the yellow "Add xxx Photos" button and your photos will be sent to the selected frames: