I would like to know how to change the cover size of the groups ... currently there is a banner, I would like to leave more "square" ... where do I change this?
Make it as square i am afraid the layout didn't allow that. In case you can just see https://www.opensource-socialnetwork.org/wiki/view/1063/how-to-develop-a-new-theme
Due to the many requests in the past for additonal features and components we have decided to develope a premium version. Features like Hashtags, Videos, Polls, Events, Stories, Link Preview, etc included in it.
$199 (Life Time)