How to control layer visibility in a customized way in KiCad using Python?
Controlling layer visibility in a customized way can be achieved using KiCad's Python scripting console. Here's an example script:

```python
import pcbnew

# Load the current board
board = pcbnew.GetBoard()

# Example: Turn off visibility for all copper layers except the top layer
for layer in pcbnew.LSET.AllCuMask().Seq():
    if layer != pcbnew.F_Cu:
        board.SetLayerVisible(layer, False)

# Refresh the view to apply changes
pcbnew.Refresh()
```

This script turns off the visibility of all copper layers except the top layer. You can modify the logic to suit your specific visibility control needs.