Field: Unique Text Input
Makes the value's handle unique across the section
/uniqueinputfieldfolder to your Symphony
Enable it by selecting the "Field: Unique Text Input", choose Enable from the with-selected menu, then click Apply.
You can now add the "Unique Text Input" field to your sections.
Behaves identically to a normal text input, however it enforces uniqueness of the handle and you cannot group the output in Data Sources.
Two modes allow you to choose between throwing an error, "This must be unique", or attempting to make the handle unique automatically by appending an number, eg.