restrict to add payment line of same journal in pos, POS Unique jornal lines on payment receipt,restrict POS Payment duplicate, restrict POS Payment to only have 1 payment methods selected, POS Unique Paymentlines, Don't allow to have 2 POS payment line with the same payment method, User can only choose 1 CASH, and 1 BANK if they want, but will restrict 2 CASH payment method, pos unique payment, pos unique payment journal