aA. New Merge Field Button: Clicking Button - Clicking this button starts the process for creating a new merge field.
bB. Custom Merge Field Info: each Info - each row contains data pertaining to an individual merge field. This information includes the Name, Description, Type (image or string), and the Value.
cC. Edit Button: Click Button - Click this button to edit the name and/or value of the merge field.
d. Delete: Click D. Delete - Click this button to remove the custom merge field completely.