How to add trimesh collision to multiple Meshinstances at once

Question

I have a (environment) scene with 77 mesh instance to which i want the player to be able to collide with.
Problem is, how do i automate the process of adding trimesh collision to each and every mesh.

Answer 1

3 Steps .....

1. Use tool mode
2. Loop through SceneTree
3. Create collisions

.

# Trimesh.gd
tool extends EditorScript

func _run():
    for child in get_scene().get_children():
        if child is MeshInstance:
            child.create_convex_collision()

The above code assumes a few things like all 77 MeshInstances are a child of the scene root which you can get over by creating a recursive function to get all nodes.

In the Script Editor press File > Run