Compare measurements on SPC charts

Control charts were limited to one measurement at a time. You can now overlay multiple compatible measurements on a single chart to spot correlations and trends across your process.

• Added multi-measurement selection with Shift-click on the measurement overview, with compatibility checks (same type and units)
• Added phase filter in sidebar showing data point counts per phase when multiple measurements are selected
• Added compatibility tooltips showing which criteria match or mismatch when selecting measurements
• Limits and Cpk tab now hide automatically when selected measurements have different spec limits