I chose a lightbox to show on a certain page. But when I select it, it automatically also selects to show up on first page seen, which I do not want. How to uncheck it so that it remains unchecked? Also, when I checked, it only showed up on the first page (which I did not want), but also did not even show up on the page I wanted and had marked.
Go onto the lightboxes own trigger settings and turn the settings to off.
https://support.wix.com/en/article/setting-which-page-your-lightbox-appears-on
Then on the pages that you want the lightbox to be shown, simply put in the page code to open your lightbox in your pages onReady or after a set time or after a button click for example.