Ignition OPC tag to translate int to value?

I have a memory register in a PLC that has an Int value that translates to a letter revision. I can make a script on the page that translate it at run time, or create a second expression tag that updates on change, but I was curious is there a way to make a single OPC tag that reads the memory register and translates it all in one go?

No, the additional expression tag is the best approach.