How do I create collage on my honor 9?

I've always used android and just gone from Samsung s6 to honor 9 which is a great phone. However in my gallery on s6 you selected 2 pictures and could create collage, side by side view. It doesn't seem to give you this option on honor 9, please help.

from Android Forums at AndroidCentral.com - Ask a Question http://ift.tt/2zPgCk0
via IFTTT