Fixing image numbers (width) in gallery page

Site URL: https://yasminmund.com/food

Does anyone know if it's possible to specify the number of columns of images in a gallery thumbnail view? No matter the size of the browser window? (on desktop)

I am working in wells template and want to fix the number of images across to two images only in gallery thumbnail view.

I know you can change the size of the thumbnails but I would like to fix the layout to two columns running down only.

Any help would be greatly greatly appreciated.

@yasza Did you find a solution? Looking to do the same thing and can't figure it out!