In the stage lighting world, a “submaster” is a fader (dimmer) that controls the level of several lights.
Submasters is a plugin inspired by stage lighting control, with input and encouragement from @HSD99, to control multiple dimmers from a single dimmer. Like their stage counterparts, Vera submasters can have individual maximum levels set for each controlled device, and the level assigned at any given time is proportional the controlling fader’s level. For example, if you have two lights controlled by a fader, and one light is assigned a maximum of 80%, and the other 60%, then when the fader is at 100%, the controlled lights will be at 80% and 60%, respectively. But when the fader is reduced to 25%, the controlled lights will be at 20% and 15%–each at 25% of its programmed maximum.
This plugin is currently offered as a developer preview/early release, and can only be installed from its Github repository, here: https://github.com/toggledbits/Submasters-Vera
Installation instructions are in the README.md file. Comments, questions, etc. are welcome in this topic.
Hint: Switchboard Virtual Dimmers make great faders (but are not required).
For you stage lighting aficionados, the plugin currently operates only in LTP mode. HTP mode is coded and working, there’s just no way to switch to it. My sensei and I are still working out the specifics of where and how HTP should apply; your input is welcome, too.