Properties & Custom Properties
Custom properties are really powerful and can aid your marketing efforts massively.
You can store any type of information against your contacts, for example, what pottery lesson they are coming to.
To create a custom property, simply select the field type from the list.
To find the properties and custom properties display: Go to > Settings tab
Available in forms
If you require the field to be available in your forms, simply turn it on. Note: You can hide the fields too, under the hidden field type in your form settings