For anyone wanting to support the group , you can use the script in one of the most recent announcements to invite your friends too.

Invite your friends by following the instructions in the most recent announcement.

Invite your friends using by this in your browser's console while on the friends page :

var groupID = '103582791464565697';
var friends = GetCheckedAccounts('#search_results>.selectable');

InviteUserToGroup(null, groupID, friends);