7h Timeframe

Hello, I am requesting an option to customize the candle open anchor times for custom timeframes to match TradingView. Specifically, on a 7-hour timeframe for index futures, I need the candles to open exactly at 1:00, 8:00, 15:00, and 18:00. Right now, changing the global time zone shifts all other charts (1H, 4H, Daily), which ruins my analysis. This 7h timeframe is crucial for me as my entire trading strategy is based on it. Please implement an option to set custom session boundaries or anchor times for individual timeframes. Thank you.