Collections Management - Customer Contacts Since Field

Hello,

We are wondering, when going to Process Receivables within a Collections Management worklist item, on the Customer Contact, Payments and Notes tabs there is a field that says "Customer Contacts Since", "Payments Since", "Notes Changed as Of". Ours currently default to a date 30 days prior. Does anybody know a way to change this to default back to a number of days or certain date rather than having to update it every time we enter the tab?

Thanks, Kevin