Image Gallery – Focal point, Pictures preview in Grid builder

Please, add Focal point for all pictures in Gallery,
Desktop – Tablet – Mobile.

If Gallery is a bit complicated, the layout is not even, 20 pictures,
It would be more comfortable to work in Custom Grid Options – Grid Builder mode when you see pictures:

Please, add pictures preview in Grid Builder.
Ie instead of gray rectangles one can see actual pictures:

Enable / Disable Alt or Caption.
Styling for Alt / Caption.