Not paying all suppliers from Suggested Payments without doing them individually or doing a lot of amending

When you run a suggested payments report showing all suppliers awaiting payment, it would be good if you could then be able to tick the ones you wish to pay to generate payments. I currently have about 500 suppliers that are paid monthly and although they would all appear in the suggested payment it is not possible to pay everybody at the same time, and it depends on who has chased to who gets paid so I am unable to set them into payment groups. In the suggested supplier payment enquiry workspace I am able to tick suppliers but I then need to be able to generate payments for those suppliers. It takes so long to do each one individually when I pay a batch of 50/75 suppliers and would take longer if I amended the payment file to zero out 350 suppliers.