AR30 Automation

My Finance team is trying to automate the process of selecting a invoice that gets paid on the check listed in the header section of AR30.

What they do is:

“We first add the payment in AR30.1 once the batch is created by giving it the batch number we created, adding the pmt number, paid amount on the check, and customer number with the date we received the money. Then hit add to add the payment. Then the manual work begins by having to put an A for add next to each invoice that gets paid on the check. This is the part we'd like to automate.“

Is there a way to automate this task?

Thank You