I have created a custom integer field on the article.
I want to copy the data of the existing field Usages (Used as solution) field to the custom field CustomField
To copy the data for upcoming changes, I have created a rule to set the value of field CustomField as same value from Usages
But for existing articles, I want to copy the data from Usages field to CustomField and do a mass update
Could anyone please share steps on how to do this?