Category: Knowledge base
To set up service charge (tips) for a booking you will have to go to the back office > Dashboard > Settings > General Price settings > Enable Service charge/Tips (towards the bottom of the page). Set this to "Yes" and you will see the following option "Show input box for Flat Tip: Yes/No". Select "Yes" to show an input box for the customer to enter the desired Tip amount on their own. 
You will also see the "Add new" button. Clicking on the button will open 2 options form: Amount input box for the amount of pre-defined tip and Value/Percentage choice for selection of the type of the service charge/tip. A common practice is to set 15% tip which will result in showing a quick selection button for a 15% service charge at the front end booking form third (final) step of the booking process. 
Create as many pre-defined service charge buttons as you wish. Add a comment
Category: Knowledge base

To set up SMS sending to your customers please go to Dashboard > Settings > SMS Settings

In this section you can set up SMS or Text message to be sent to your customer's phone to notify New bookings and Order status changes. This service is provided by Clickatell and you will need to have an account with them to set up all required information in this section. Click here for more information and sign up: Clickatell SMS Gateway connectivity to 819 Networks in 222 countries.

Clickatell API - fill in the API key you get from Clickatell after sign up.

Clickatell User name - fill in your Clickatell user name

Clickatell password - fill in your Clickatell password

Country Phone code - fill in your Country phone code without leading 0 or + sign eg. United Kingdom: 44 (NOT 044 or +44)

Source address (Sender Id) - optional, if you are Small business account holder at Clickatell. This is a short number assigned to you by Clickatell and the Sender ID will be between 1 and 16 characters long

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Category: Knowledge base
Go to Dashboard > Settings > General Price settings. 
Show return: Yes
Wait at drop off: Yes
Add new button
Time (hours): XX - this is the waiting time segment, you can create as many waiting time segments as you like.
Wait time flat charge: - input filed for additional charge for the waiting time. This fee will be added to Total if the customer selects this waiting time for Return trips.
Discount for Return (%): XX - this is a discount for the Return trip. You can leave this empty or 0. You can also use negative numbers eg. -10 which will actually increase the Return trip price by this %.
Now, when a customer selects Waiting time for Return trip in the booking form the calculation of Time (and price if selected) will be Base > Pick up > Drop off > Wait > Pick up > Base
If a future date is selected for Return trip then the normal calculation will be used: Base > Pick up > Drop off > Base > Drop off > Pick up > Base
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Category: Knowledge base
To set up Show car Types go to the back end > Dashboard > Settings > General Settings > Combine Cars by type: Yes (this setting will combine all cars by type and will only show 1 car result in the Cars section of the booking form). 
Show number of same Type cars: Yes/No - this setting will show a number of Cars you have available at the moment of booking next to Car type in the Car results section.
Show Car type drop down: Yes/No - this option will show all your car types in a drop down on the first step, this settings is optional.

Note: Car type = Car title in car management. All cars of the same type must have the same Title, same number of adult seats and child, infant, booster seats. You can distinguish cars at the back end by Car color (set in Car management) and Car plate number. Add a comment