I used TradeStation years ago and I found it easy to program. But now that they've changed how they do business I no longer want to use TS. I tried Sierra Chart. It uses a C like programming language which I did not care for. I'm assuming that TS uses what is called a high-level language and C is what is called a low-level language. So I want to find out which other programs use high-level programming languages.
Easy to program but full of bugs people paid an arm and a leg for. I think you should develop your own. Every winner has developed their own. Losers use retail products.