externalId of the hit primitive, or null on empty plot.
Press position: container media x, pane-local media y.
Price under the press on that pane, or null off the plot.
The same state as modifiers, in the flat form the draw tier has read
since it shipped. pressure here is the pressure at the press, not the
release, which always reads 0.
UTC seconds under the press, interpolated between bars and past the right edge.
OptionalviaSet on the release half of a press-drag-release while a host is placing a shape.
Payload of the
clickevent (chart.on('click', ...)).