Both of these programs do the same thing just in different ways.
Go to Disbursements -> Invoice Release / Check Writer -> A/P Release for Payment (AP3061) or Release Invoices for Payment (AP0092).
A/P Release for Payment (AP3061) screen is for when you have a lot of invoices to release and you want to add criteria to how you release them. Using auto-release will allow the system to review invoices on hold based on criteria in your control parameters to determine which invoices are ok to release. Auto-release with operator action, will allow you to review each invoice one at a time.
On the Release Invoices for Payment (AP0092) screen you can hold the 'Shift' key on your keyboard and left click the mouse button to release invoices.