CombinedLifeMeterTug doesn't have MeterHeight; it strictly depends on the size of the graphic since there's no commands that can be run on the stream as far as I can tell.
multi-part commit:
* [CombinedLifeMeterTug] Added names and commands to Separator and Frame items. Fixes issue 9.
* [MeterDisplay] Added names to Stream and Tip items. I would've added commands but I'm not sure where they get run from (or if they get run at all), so that's a job for later.