LookupSettings.cls custom code trying to pull rowdata from the table when "User Clicked the Delete button for a row"

Working on a custom view for LookupSettings.cls.  I've added code to adda Change Log entry into the table when rows are added/updated.  I'm trying to do the same for when rows are deleted.  How can I pull the key & value for the row when it is selected for delete /un-delete?  The variable rowData is used a pointer for the row index.  I know I'm missing something simple... 

from: ClientMethod removeRow(row, addBack) [ Language = javascript ]

var ThisRow  = ????????

var values = this.getTableValues();
var user = zenPage.GetUserName();
var DT = zenPage.GetCurrentDT();
var autokey = '###'+ DT +' by '+ user;
var autoValue = '### UN-deleted row: ' + ThisRow; 
var data = { "key": autokey, "value": autoValue, "_isNew": true };
values.push(data);