Zend certified PHP/Magento developer

Magento 2 – Change the Max height of the fotorama gallery

In Magento 2, I changed the fotorama gallery to vertical. Now I want to limit either the maximum number of thumbnails that shows when the page loads or limit the height of the fotorama gallery.

As an example, if I have a product with 10 thumbnail images. I want the page to show 5 thumbnail images and the rest can be accessed using the arrows in the fotorama gallery.