Matrix under a chart
Heatmap on a Surface — overlay, history scroll and shared stacks.
A new Surface tab starts as one chart without an indicator. Pick a chart layout from the tab ▾ menu. Indicator → Matrix opens the heatmap under the chart. Each pane has its own coin list (up to 10).
Settings, coins and the interval sit as an overlay on the heatmap (interval as a dropdown). They do not take a reserved strip of height. The interval chips on the chart toolbar stay as they are.
Scrolling the chart into the past loads more candles and the same stretch of heatmap — the matrix keeps pace with the chart window.
By default each chart keeps its own Matrix stack. To share one stack under all charts, start from a single chart and use + → Chart … · shared indicator (see Chart).
Chart-bound matrices on a Surface are horizontal only — there is no H/V toggle there. Standalone tabs can switch orientation; see Orientation.