Use below property
what do you mean by field? could you please explain more with screenshot.
You have following options to hide field(resource / child nodes) and properties.
The resource merger provides the following properties:
While inheriting a custom component, if we dont want the particlular field(Example: Some Image Field is not neccessary but all other fields we need). Then how to hide that particular image field.
Are you using sling:resourceSuperType or overlay(copy nodes from libs to apps)?
If you are using overlay then just just add property sling:hideChildren = childnodepath
There is another way to show or hide field using granite:renderCondition