Option 1
Head to the Incomplete Safety Forms tab under the respective activity
Select attendees that you want to send reminders to
Tap Email Safety Form Reminder
Option 2
Head to the Incomplete Safety Form tab under the respective activity
Under Actions, click on the action cog beside the attendee that you want to send reminder to
Tap on the Send Safety Form Reminder
Option 3
Head to Customers tab → Incomplete Safety Forms
Select names of attendees you want to send reminder to
Click on Email Safety Form Reminder