Trade replay
Replay is for the trades you already logged. The chart is the tape around that fill: entry, stop, target, exit.
What you see
Pick a trade. The replay view loads a market chart for that symbol when the data vendor allows it, and draws the levels you stored. Period and candle/line style are selectable.
When the chart is empty
If the vendor rate-limits or the symbol is unknown, you still have the journal row. Replay does not invent candles.
Why it exists
P&L without path is a scoreboard. Path without P&L is entertainment. You want both, on the same fill.
FAQ
Is this a simulator?
No. It is a review of fills you already took.
Which markets?
Symbols the market data layer can chart (US stocks via Polygon, crypto via CoinMarketCap), plus anything you logged even if the chart is missing.