I highly doubt that but there are a couple of ways you can do this the " not so accurate way":
1- Take your altcoin price in USD from Coinmarketcap.com exanmple : ETH 325.40$ divide it by the BTC price from Coinmarketcap.com at the same time BTC 2621$. You get 0.12415 ETH/BTC. This method is inaccurate since the price includes all exchanges listed.
2- Click on you altcoin and you get the price for all the exchanges listed, use the prices from the exchanges that you usually use or access the exchanges.
3- Easiest way, we need this message to reach coinmarketcap.com and tell them to enable this feature from the outside.I believe it is fairly easy for them to enable this feature and we won't waste our time doing useless calculations.