Samsung Galaxy S6 edge + User Manual page 206

The Gallery app opens.
2. Tap a picture you want to add to a collage.
3. Tap Edit > Collage.
4. Tap
or ADD to select additional pictures for the collage.
Tap pictures to select them.
l
Tap Done when you are finished selecting.
l
Your collage layout will be displayed.
Camera and Video 196