Columns

Change any column

change first column

https://support.airtable.com/hc/en-us/articles/223374668-How-can-I-change-the-primary-field-in-my-table-

Change the number of frozen fields

https://support.airtable.com/hc/en-us/articles/203312065-Changing-the-number-of-frozen-fields-columns-