In an earlier question, it was suggested to use the "split" feature to account for a Vanguard mutual fund that was converted from "Investor" to "Admiral" share. Even with the same fund name, the Investor and Admiral shares have different share prices.
I was able to perform the conversion following the steps. However, since this conversion actually creates an investment in a new fund with different symbol, I did not see how to separate the new from the old funds. It seems all transactions both past and future still reside in the old fund.
Is there a way to "split" into a new fund with different name?