Duplicating field definitions
You can duplicate a field definition and then modify it. For example, if you have defined a field with a complex calculation formula or value list, you can define a new field that uses a similar formula or value list.
To duplicate a field definition:
1.
With the database open, choose File menu > Manage > Database.
2.
In the Manage Database dialog box, click the Fields tab.
3.
If your database contains more than one table, select the appropriate table from the Table list.
4.
In the Fields tab of the Manage Database dialog box, select one or more fields that you want to duplicate, then click Duplicate.
FileMaker Pro places the duplicated field at the end of the list of field definitions and adds Copy to the field name.
5.
To change the field name for the duplicated fields, type new field names or edit the existing names in Field Name, then click Change.
See About naming fields.
6.
Change the duplicated field options as needed.
7.
Continue making changes or click OK.
Related topics 
Copying and pasting field schemas (FileMaker Pro Advanced)
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