Cover the Metrics Builder in “Single metric” mode: source, field, indicator, adding to the chart. And why compute a formula on top of data that's already visible on the chart.

A technical indicator on top of any DYOR data. In essence, your own indicator, built in the interface without code.
The result is a pane on the chart, like a regular indicator.
Why bother if DYOR indicators already exist. A regular indicator shows the current picture in the data: how many dollars sit in the order book, how many contracts are in OI. That's the raw value. A formula on top of it asks the same number a different question. How unusual is it for the last N bars — Z-Score, Percentile. How fast did it change — ROC, RSI. What corridor does it move in — Bollinger Bands. That's how a local anomaly shows up in data that looks flat. And the other way round: a spike on the raw line turns out to be normal for this coin.
A live example. BTC/USDT, 1h, asks 3% on spot, September 20, 03:00.
The anomaly here is a fact about the current bar: the value is rare for the last N bars. It doesn't say where the price goes next.
Ask the data your own question instead of the raw value: smooth it, measure the speed, find a local anomaly. It's your own indicator, written in the DYOR interface without code. A tool for those who know what they want to compute.
For example.
Right rail → Metrics Builder. Mode: Single metric.
Yes, via the Composite metric entry in the “Metric” list. It's the same builder inside the condition form. That's how sources not directly in the list get into alerts: market cap, market-wide Depth Index and others. The “Exchange” field in this form is actually the market type, Spot or Futures: the exchange here is always Binance.
The builder applies a classic indicator to any DYOR data: source → field → indicator → “Add Indicator”. A regular indicator shows the raw value. A formula on top of it answers a different question: how unusual the value is for the last N bars, how fast it changes, what corridor it moves in. Flat-looking data reveals a local anomaly, and a spike on the raw line turns out to be normal for this coin. It's your own indicator without code, for those who know what to compute. An anomaly is a fact about a bar, not a direction forecast. Via the “Composite metric” alert metric, the same builder works in alerts. That's how sources not directly in the list get there, e.g. market cap and market-wide Depth Index.
Asks 3% on BTC/USDT are 72.9M, mid-range over 100 hours. Z-Score(20) shows −3.5. What does it mean?
Correct answer: For the last 20 hours asks held noticeably higher, and within an hour they were pulled sharply
Percentile(100) = 56 and Z-Score(20) = −3.5 on the same bar. Why are the answers different?
Correct answer: Different windows and different formulas: over 100 bars the value is ordinary, over 20 it's a sharp drop