Tell us what you are trying to do? I have a gallery on my content template that just shows images in columns at the moment. My Client wants to replace this with an image slider instead. So just one column, one image at a time, with slider capabilities. I know you can do it via the blocks editor but I am using the classic editor to try and do this and I don't know how to go about it.
Is there any documentation that you are following? No
Is there a similar example that we can see? hidden link
What is the link to your site? thankful-scissors.localsite.io - you will need a username and password to view the site which I can provide if you send me the section to complete the login details etc.
I don't think that is going to work because I have a custom post type called "Catamaran listings" and within that there is an image field that allows multiple instances to create the standard gallery seen in the screenshot below.
If I go to create a new view and make it a slider, I cannot select images in the filter query - they don't display on the list?