Auto commit (post )after selecting service

Hi people of wpmudev. I have been noticing that my clients are not hitting the show available times button after selecting the service. This causes that the service provider list does not update nor the calendar times. What i want is that after they select a service from the drop down menu, the page automatically updates (as if the had hit the button). This is already done when you select a service and the service description appears. Please this is proving to be a problem on my site. Tell me if there is a parameter to make this happen or if i have to make mods to the plugin itself. Thanks in advance