Joint Push Pull SketchUp Plugin: Ultimate Guide by Fredo6 is an essential SketchUp extension that overcomes the limitations of the native Push/Pull tool, which only works on flat faces . It allows users to extrude multiple faces simultaneously, including complex curved surfaces, while maintaining clean and seamless geometry. Key Features & Tools
Extrudes while automatically rounding off the edges.
Unable to install Joint-push/pull - Extensions - SketchUp Forums