Users can easily define their own control structures as well.

The start and end points are usually found by using user defined percentages.

Users of the language can also define their own abstract data types.

This approach furthermore helps the users to define the requirements for the system.

Users can define functions and libraries to extend the language.

Users can easily define their own control structures also.

Each user can define indicators according to his needs.

If the keyboard has multimedia buttons, the user can define them to run any program or action.

The user can define profiles for all account types to set default values.

The user defines both the question's prompt and the format of the data that is to be collected.