If you are adding notes for an engineer, it is worth considering where you add these notes. If you are only adding notes for your engineer within the job, this will not be visible on the diary and your engineer will need to open the job to view these notes.
If you add your notes for the engineer directly into the diary event, they will be visible on the diary and your engineer will see the notes easily. If a job has more than one diary event, you can have different notes for each diary event.
To add your notes on the diary event, click the diary event, then click 'edit' beside the 'Event details'.
In here you will see the section to add and save your notes for engineers.