Which of the Point System is Working for SIMContest and do i get the download Point system plugin that i can use for the contest show less

1. How do i add point to user from Joomla backend
2. How can I change the name "point" to "Credit"
3. Can I use it with AUP(alpha user point) or jomsocial point with SIMContest, (if No, how can I achieved make it so)
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