I know there's "Shared Parameter" and "Group parameter under:" to organize parameters. The idea is to make parameters as Sublist, just like in "Project Browser". It's just the way of well organised.
Imagine if you want to make parametric chair. The arm, leg, step, seat, etc. Each elements has its own dimension to set (width, height, length...). Then there's gonna be lots of parameters. But if we just can sublist of parameter. It's very easy to visually see.
Dimensions
Width: xxx
Height: xxx
Depth: xxx
Other
[-] Arm Visible [Yes/No]
- Arm Width: xxx
- Arm Height: xxx
- Arm Material: xxx
- Arm Thickness:...
[-] Back [Yes/No]
- Back Width:xxx
- Back Height: xxx