Just want to share some important info,
According to latest trend from big brokerage houses, more than 90% traders shifted to mobile or web platform(mainly web) [although there are also about 5% high volume traders or pro traders who generally prefer desktop platform].
As a business, for any brokerage house, the latest web platform with HTML5 is the future.
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So, IMO,
As Fyers web is based on one of the greatest platform tradingview so it has certain advantages over other well-designed web counterparts.
It's better to bring slowly most of the significant features from trading view as much as possible including some of the popular custom made indicators with a high rating (in the later stage of development). And make the whole process, without changing the default screen for general users or beginners, the percentage of whom is much higher.
Nowadays, most of the brokerage houses are busy to bring the significant features to the web over desktop platforms. Tradingview already has most of them and some extraordinary addition like dom etc which other don't have. So flyers web just need to inherit the most advanced features of tradingview in the backend(optional or hidden to benefit all type of traders without disturbing the beginners). A beginner may start seeking added features later like a pro, with more experience and knowledge.
This is my opinion only as a trader, software designer, and researcher of the trading world. But this can help both of us, fyers & all type of clients of fyers in the future.. In this competitive world, we just need to apply all the edges we have.