You can remove the additional fields from the App config screen.
To add/remove the additional fields for the Check-In/Out
- Go to the TT Apps tab and click the app name of the App Key for making changes,
 - From the Check-In tab, click the Additional Fields sub-tab. Add the additional field for Check-In/Out.
 - You can also make the selected fields Mandatory by selecting the Mandatory check-boxes for the fields.
 - Click the save button and save the configurations.
 

To remove the additional fields,
- Click the drop-down that is at the end of the field name,
 - Scroll to the top of the fields list and select the none (blank) field and save the configurations.
 
