The main function of custom fields is to allow the inclusion of specific and useful data for your task management.
Step by step
1) Access the Workspace editing menu and go to the “Custom Fields” tab
2) Click on New Custom Field.
3) Fill in the spaces on the form
4) Select the custom field you want to include in the task
5) Define whether the custom field will be a filter criterion
6) Save
7) Fill in the custom field in the task form > Custom fields