Lighting Feature Request - Additional DMX parameter control

Current fixtures have up to 6 parameters (intensity, color, strobe, pattern, rotate, gobo), but most fixtures have more parameters. 
Would it be possible to create a feature whereby the user can add rows in the macro mapping editor for other parameters such as Prism, Focus, Gobo Rotate, Macros, etc...
The ability to enter a value 0-255 over the timeline for these would add a huge amount of flexibility and control.
These additional parameter rows could be defined in the fixture library tab (hamburger button) with just two fields: Name, Channel (relative to fixture base address).