# Fields
The fields defined for the selected model or sheet, along with their properties/attributes are prepopulated here. On expanding each fields, all its attributes are listed below.
Mandatory Attribute (ID): Each field has a mandatory attribute known as the ID. This attribute is indicated by a key icon in front of it. The ID uniquely identifies the field within the model.
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Other Attributes: Apart from the mandatory ID attribute, there are additional attributes associated with each field. These attributes are represented by a "cube" icon. These attributes provide further details or properties related to the field.
You can perform the following operations on each field attribute within the Report Details Pane:
*  **Move to Rows**: This action adds the attribute to the rows section of the layout. The attribute's values will be displayed as row headers in the generated report.
*  **Move to Columns**: This action adds the attribute to the columns section of the layout. The attribute's values will be displayed as column headers in the report.
* 
**Move to Filters**: This action assigns the attribute to the filters section of the layout. The attribute can be used to filter or narrow down the data shown in the report based on user selections.
* 
**Search**: This search functionality allows users to enter keywords or terms related to the attribute they want to find.
## Operations on Data
**Copy**: To copy cell value
**Save as**: To save data as an excel sheet
**View Data Details**: This feature enables user to view a detailed breakdown of the values that build up the particular item.
**View Data History**: This feature enables users to view the historical data for a particular row or item. It allows users to track and analyze the evolution of data for a specific item, providing insights into its previous states and modifications.
*Learn more about* [Fields](/process-definition/modelling/fields.md)
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