setting Thresholds in a Metric

I have this question regarding setting of Thresholds in a Metric (OEM 13.5);

A metric is already running, and providing data. But, no thresholds are set. The Metric in question is a Host type of metric, checking the Swap memory usage (in percent).

There's 4 views of the Metric values when reviewing the history graph:

• current
• last 24 hours
• last 7 days
• last 31 days

All of these provide information, before setting the Thresholds.

But, when setting thresholds, this is what happens: the graph displaying the current (recent) information is also now showing the two Thresholds by means of horizontal lines, in that same graph.