Options
Change Tag_Subfield (e.g. 700_a): Specify the tag and subfield you want to change; both are required.
From: Enter the value to change, which must match exactly. If this value is left blank, no changes will occur. Entering a value of * (asterisk) allows the tag to change no matter what the actual value is.
To: Enter the new value for the specified tag.
Look for From value anywhere in tag: When enabled, a match is made if the field being changed contains the value anywhere in it and then only that value will be updated. For example, if www.amazon.com/amazon is in the tag being changed and you run the utility with "amazon" as the From value and "barnesandnoble" as the To value, the result would be www.barnesandnoble.com/barnesandnoble.