You can change the default values used when creating a new capture. You can change the default browser, list of e-mail recipients, default apps used, etc. Go to Account, and scroll down to the Default Capture Settings. Any change you make here will be used for new captures, it will not affect existing captures. Don't forget to Save!
if you don't what one of the settings does, click on the question mark next to it to bring up the product help, such as this page: