I need to create a custom button on a product edit page.
This button should be the same as the add product button, but with custom name and custom links in a dropdown menu. For example, one of links should open my custom module config page).
I can't find any documentation or tutorial for this. From this answer I know how to make simple custom button, but I can't find any info about how to create the button with dropdown with my own links.
I would be grateful for any information regarding this topic.