Ok apart from the above 2 tools is there a another way to watch live selective altcoins all on 1 screen at the same time using live data from coinmarketcap?
the data from coinmarketcap is not live, it updates every 5 minutes.
if you want a live price you have to use an exchange API to get the price data directly from the exchange not through a third party.
for example call this:
https://bittrex.com/api/v1.1/public/getmarketsummaries
and then take the "Last" key or "Bid" or "Ask" keys for respective prices.