Getting maximum fitness of something and minimum

Can I ask Galapagos to maximize the tower floor area and minimize the total solar radiation? in other words, getting maximum fitness of something and minimum in another thing at the same time.

All the best,

Put a negative on one of the fitness values, that way you minimise, or maximise them together.

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That’s great idea. I’ll try it.
Thank you so much Christopher.

Generally speaking, just think of a fitness value as a (game) score.
Each property could have a different impact on that score. This way you can easily optimize for multiple properties without using a multiobjective solver. Then you just maximize it.