With several devices/components in a MultiTrend chart it can be difficult to differentiate the trend lines if the metric values show similar values.
In the legend of the MultiView chart, right click on the name of the device/component and select "Focus".
The chart will then display only the device/component you have chosen to focus on.
To revert, in the legend of the MultiView chart, right click on the name of the device/component and select "Unfocus".