Hi,
Per your question, it seems both the pages are reporting in the same report suite. If yes, the best way to segregate the data, would be to pass a unique identifier using 1 custom variable, for both the pages. For an example:
For version A, pass prop1 = Ver A
Similarly for version B, pass prop1 = Ver B
The one above is just a generic example. Choice of variable and the value being set is completely up to your requirement.
Note: When you say Document Path, I'm assuming it's the localhost path being picked from the local machine when you open those pages. If it's true, those path values should already be passed as the page URL (g parameter). Please check and if you see the path values being passed, you'd be able to use Data Warehouse to get data for the desired page version by applying segment for Page URL.