Yes, I got it. This column is an absolute must-have. Also you could add checkboxes against each referral whether they get payment, since inactive in the last round may also get their share (which doesn't seem fair). Would they get premiums also when choosing "Share amount based on referral activity"? If you don't save their last round commissions, they would, right? Obviously we should exclude them from payment, therefore the last round commissions by these referrals (if they made something) are also needed...
I do not wish to allow sharing with specific referrals because it will open the system to abuse ie. people open multiple accounts, claim prizes from each and then accumulate it in 1 account for payment. Right now such abuse is time consuming and the abuser will receive a lot of dust payments so not worth it.
I have started recording referral commissions a referral makes since last payout and I shall add that column in a couple of days and also allow you to share based on that very soon.
Yes, without this the whole system wouldn't be usable. If I want to share some part of the commissions received, I should know the total of them I got since the last payout. Then I would be able to share, say, half of the sum to be distributed between referrals by your formula according to their participation. So, before all, I should be able to see the total commission made by all the referrals since the last payout as a starting point...
I also think that the option "Share amount equally among all referrals" doesn't make much sense and may only contribute to confusion