User Activity

How can I see all open calls that have not been "completed", I need to be able to see any calls sitting out there in ST either as "Open", "Scheduled", "Paused" etc. Using the options below the dispatch board is not showing prior days jobs unless you ...
I need to apply a credit to an invoice that has been exported, but no payment has been made as of yet. Can I just apply a refund through the payment screen or do I need to do an invoice adjustment?