Support all recording tags in Trend Charts

Please provide the ability to plot any recording tag (built-in or custom) over time using Left menu -> Trend -> Trend.

Currently only some built-in tags are supported. This makes it impossible to plot the occurrence of the other built-in tags and custom tags when they are important.

E.g., if the user needs to track custom metrics with a recording tag like #disturbance, that is not possible. Or the built-in tag #sick cannot be plotted to manage sickness-related sleep disorders, etc.

Thank you.