You cannot think of any scenario where this could be needed?

I have a bank website, I need to download 46 different statements placed on different accounts luckily using the same user. All accounts is listed, but I cannot simply search out each one by filtering. 

Because I cannot change the match rule:

• Now I need to interrogate all 46 lines on the same page, because I only have the account number, the remaining ID/html is random generated and i'm only interested in a unique match.
• have a switch that select which of the 46 objects it need to wait for and click on.

With dynamic match rule:

• I could retrieve it directly from excel / script, pass to a stringUtil, and then change the match rule to fit, click the button.
  • 3-4 stages compared to 46 * 2 stages.

My alternative would be some javascript based solution, by figuring out the ID on runtime of each account. However, if dynamic match rules were possible, I didn't have to code and was done in no time with a clean and clear automation.