Hello Paopao,
1 - Do your own with a Patch
2 - Use dynamic material graphic representation hatch
3 - Use insulation line
4 - Do your own insulation line
Christophe - FRANCEArchicad Designer and Teacher
Archicad 15 to 27 FRA FULL
OS 11.6 Big Sur - MacBook Pro 2017 - 16Go RAM
"Quality is never an accident ; it's always the result of an intelligent effort" John Ruskin