SYMPTOM:
The option to enable thresholds on graph is greyed out when setting up thresholds on a metric
If the user adds a threshold to a metric and would like to enable the threshold to appear on graphs as well, they may encounter that the option to "enable threshold on graph" is greyed out as shown in the image below
CAUSE:
One possible cause for this issue is that the threshold has formatting has been applied on the font only and not the background.
This is because it is the background and not the font that is applied as the threshold change to the graph (i.e the color of the background associates to the color of the bar in a bar chart or the color of a pie slice in a pie chart).
ACTION:
Set the background formatting to an option other than default to allow the use to select to "Enable threshold on graph" as shown below:
After changing the background from default: (the "enable threshold on graph" option is selectable) as illustrated below
