Option for funds, allowing allocation edits when a new coin is introduced

As a fund manager I find it off putting that when GVT introduces more coins, I will have to close my fund or buy another 50GVT to create a new program to add those coins. It would be nice to be able to edit my allocations/coins. 

I was told that if a fund was allowed to edit coins it would be unfair to people who are invested. Which is true, but I propose an option for an investor to manually/automatically withdraw their tokens from a fund (for free or at a reduced exit fee) if the mananger changes the fund allocation.

So when someone has gvt invested in a fund and the manager edits the fund allocations, the person will receive a notification and either manually withdraw the investment at a reduced or free rate, or  have set up an automatic rule (if manager edits allocations in X/Y/Z ways then withdraw investment at reduced or free rate.)

I think this would be a great addition to the platform, as it allows freedom and fairness to both fund manangers and investors.