I'd like to display a message under a group header on a group page. The red zone is where I would like this message to be displayed.
Is there a way for me to do that... with some lines of code ?
Changes to the UX/UI are not possible in Yammer as the code is managed by MSFT. You would have to make use of the info section on the right and you can suggest this as a feature via UserVoice.