This is a paid asset, but now you can download Easy Combine Free.
Detail this asset from Unity Store: Original Link
Easy Combine v2020.2 (Latest version)
Easy Combine v2018.2.3
Easy Combine v0.9.8
“If possible, please buy the package to support the developer”
Want to try before buy? Download an evaluation version here!
The Easy Combine system provides a very simplified workflow for combining mesh objects.
The intention behind this plugin was to give the artists/developers a two-click combine solution without the need of manually building complex preparatory steps in the scene.
• Easy usage
• Non-destructive workflow
• Scene overview
• Mesh export
• Group by Shader or Material
• Lightmapping ready
The price will be increased to 29$ when the texture bake feature gets included.