Preconditions: You must have 'Google Services' turned on.
Add an appointment for a specific client. Then in the event details section, add a url that points to that clients data.
Then when a valid user logs in to their waveforms account and selects the specific appointment, they can quickly load the client data by clicking on the "Go to the following url" link.
You can also preload html waveforms by using a url that looks like this.
Or use the name of a chart like this (cannot start with a 'tra'):
Which will load the latest form created in this chart.