Hi A_Shannon,
Based on your description, my understanding is you wonder to combined FrontDimension or BackDimension column with Cup column. And I test it in my own environment as shown in the following figure:
Please check if the results in column F and column G is your needed. If yes, you can use the formula: =B2&E2 to get the result.
If my understanding is incorrect, please be a bit more precise explain your requirement so that I can get more accurate solutions to this problem.
And you said you wondered to get the result by using a VBA macro, you could post your issue to MSDN forum for Excel:
http://social.msdn.microsoft.com/Forums/en-US/home?forum=exceldev&filter=alltypes&sort=lastpostdesc
The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.
Hope its helpful.
Regards,
George Zhao
TechNet Community Support