Tradingview Pine Script Expert - Creating RSI of all symbols within Watchlist

Hello Looking for a pine script expert within tradingview. Please take a look at two screenshots - is it possible to somehow tabulate RSI of all symbols within a watchlist on tradingview?

Secondly - Ratio of today's closing price to 50 day moving average price - is it possible to tabulate that somehow for all symbols within watchlist. I can do this in other platforms but have not quite figured out if it possible with pine script within Tradingview or not.

Please let me know if you can do these two specific calculations. Thanks