Bug in galapagos in mutating binary gene ?

I tried some experiments with galapagos.

http://www.grasshopper3d.com/photo/galapagos-structual-1?context=user

http://www.grasshopper3d.com/photo/galapagos-structual-2?context=user

http://www.grasshopper3d.com/photo/galapagos-structual-3?context=la...

It is really excellent tool and very easy to use.

However, when I tried to perform structural topology optimization with the galapagos, and made many binary number sliders (with only integer 0-1 range), the galapagos did not mutated the binary values.

when mutation process was performed, the result was always 0 -> 0 , 1->1 ...

So, I had to made 1-4 slider, with 1~2 for non-existence and 3~4 for existence.

and, one more thing...

it was too hard for me to assign so many sliders to galapagos...

Maybe I need to develope a custom component for assigning a group of items for their on/off condition. Before starting, do you(david) have any idea about it?

Anyway, galapagos is great!!!

Thanks to david!