The locked binding is used for making the content of a marked document range uneditable. If the value is a truthy. Nested locks will lock/unlock themselves and their child content controls. Thus the controlling lock is the closest parent.
Syntax
{ "BindingType": "Locked", "BindingKey": "IsLockedPath" }
Parameters
BindingType: Static. Must be “Locked”.
IsLockedPath, any, If the data of the path is a truthy, the content inside marked document range will be locked, otherwise the content is not locked.