What are the steps to replace a sliding glass door mortise lock?

To replace a sliding glass door mortise lock, follow these steps:

1. Remove the old lock by unscrewing it from the door.
2. Measure the dimensions of the old lock to ensure the new one will fit.
3. Install the new lock by aligning it with the door and screwing it in place.
4. Test the new lock to ensure it functions properly.
5. Make any necessary adjustments to ensure a secure fit.