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@alfredojp this code below is working for me well (the same as above but exact PHP code without WP-BP destroying PHP codes) and is saving all my fields:

http://pastebin.com/X2tn22ys

download here:
http://pastebin.com/download.php?i=X2tn22ys

We only need to find the way how to display those fields publicly in groups-header.php.

@modemlooper – Thank you for your checkbox code I will check it out tomorrow and if working I will implement it into the code above. Checkboxes will help me a lot.