Yes, this is possible. If there is a help page for it, I don't know where it is. It may not be the exact type of album you are requesting.
Here is an example profile Alaby-2. The profile is not open, so here is the syntax used:
=== Photos ===
The basic syntax is: [[Image:PhotoName.jpg|size]]
The PhotoName is the name assigned by WikiTree. The "size" is the width in pixels. Experiment with this number to find what you like best.