Still looking for a solution for this issue I ran into last year.
To clarify I am not looking for a repeater field. What I need to be able to do is on any given landing page, that is using a template with flexible columns, be able to use the SAME custom module more than once on that page(and those individual instances have their own content). Yes you can currently drop the same module on the page in various locations, however the front end does not differentiate the varying content in those instances.
Also imagine these being placed in different sections of the page altogether(hence why I can’t use the repeater functionality).
I hope someone out there has found some workaround for this! Fingers crossed