As per the demo below, if you attempt to apply a day and you don't have a Venloc account then a warning will pop up.
If you do have a Venloc account, you can adjust our records in the general settings section of your profile page of the app, as per the picture below. Simply switch it on.
If you don't have a Venloc account, please email [email protected] and we will get you set up right away.
First of all check out our FAQs section, it might just have what you need.