Hey there, @werta123! Thanks for contacting us. I’m happy to help you.
1.) How can I get back the gallery with all thumbnails showing, instead of scrolling?
Do you mind sharing more details on how you want the gallery to be so we can make sure to guide you in the right direction?
The pictures are different size and therefore the height changes all the time when scrolling through. Is there a possiblity to make them all in same square-size once like general WooCommerce product thumbnails?
Depending on the theme you are using, you might be able to change that under Appearance > Customize > WooCommerce > Product Images.
If the option is not there, your theme might have this option elsewhere, you can reach out to the theme’s support to see how to do it.
If the theme does not support changing the image size on the product page, you can edit this with a third-party plugin or custom code.
While we can’t provide support for code customization or third-party plugins as per our support policy, we do our best to offer advice and direct you to appropriate resources.
You can visit the WooCommerce Facebook group or the #developers channel of the WooCommerce Community Slack. We’re lucky to have a great community of open-source developers for WooCommerce, and many of our developers hang out there too.
You can also search for “customize product page”, or something similar, on the Plugins > Add New section of your dashboard or on a search engine like Google, for example.
It is good to check the plugin thoroughly to see if it is reliable. You can find more about this in this guide.
Looking forward to your reply.
Have a wonderful day!