Hello I hope your all having a great day,

Can I ask exactly where I chenge this please,I will explain, this give the users confussion as all groups are pay to join , never anything else, So this need to be Participents only, This is giving confusion and some user leave it set as public. So the best way is to just have Participants , I have looked in vain for a couple of hours can You point me to the location to edit please. Thank You Simon