Web Designer Premieum - Able Template Question

[KamenPPavlov]

Hey guys,

I'm using Able Template, but I cannot find a way to edit the images pop-up size (Gallery Page)
For example, if you put only one image on one row, the image is bigger, while adding more images to the same row, their thumbails are getting smaller, however their size, when clicked is always the same.
The problem is that, when you have only one image, it is bigger, than the pop-up one.

My question is how to change the pop-up size of the images?

Example:


P.S - It seems this is not a widget, but a SmartShape (Packed Photo Grid), but the documentation says nothing about the pop-up size or how to manage it