An open architecture allows for the easy addition of custom and legacy interfaces.

The helmet's design allows for the addition of devices such as communications and night-vision equipment.

The film was expanded to three hours to allow time for the addition of a subplot and extra characters.

Architectural plans allow for the addition of a third floor to the structure.

The resulting vacancy allowed for the addition of Moffitt to the team.

The combining of the academic buildings allowed for the addition of several new athletic fields.

The system has been introduced to allow for the addition of 140 million telephone numbers.

Provisions have been made to allow for the addition of the following stations at some time in the future:

This allowed for the addition of five more classrooms, along with an alumni office.

This series was filmed against a blue screen allowing for the addition of a cartoon background, an experimental technique in its day.