Conditional data entry sections

Conditional data entry sections

It would be good if we can have data entry in areas CONDITIONAL on a field, eg boolean field, ie:

Does he have a CAR: YES / NO
If YES - open this section up:
- What model
- What colour
- ETC

IF NO - open this section up:
- Why does he not have a car

This way we can ask many questions, without clogging the interface too greatly.

Thanks
nainishb