Zoom into a region (drag on the plot), hide a series in the legend, or right-click the plot to drop a note or a dashed line (chart.contextMenu + chart.ink), then press Save current view: chart.perspectives.capture() plus save(name) stores it. Annotations are part of the view, so a saved or shared view brings your notes and lines back, still draggable and editable. Pick a saved view to apply() it back (the chart animates to that exact state). Copy shareable link uses chart.perspectives.toURL() to encode the view into a #apex= fragment; opening that link restores it on load via ApexCharts.perspectives.fromURL().