Hi
What columns you want to hide? Try to look at the file components/com_osmembership/view/subscribers/tmpl/default.php, modify code to remove the columns you don't want
Once it's done, please move that modified file to PATH_TO_TEMPLATE/html/com_osmembership/subscribers folder so that the change won't be lost when you update to future releases of the extension
Regards,
Tuan
