Limits on a Bar Chart
Add controls to show limits on a bar chart. The bar will change colors based on whether its above or below the limit(s). For instance, say I have a target of 50 widgets per hour. The high limit will be 50. The low limit will be 50*80%. The bar will be red below the low limit, yellow above the low and below the high, green above the high. Include the ability to attach a tag to the limit and perform a value transform on the limits.