You should only include each tag once in the meshes array
By default all tagged meshes are disabled, so setting enabled:false is optional.
Mesh Groups
Mesh tags in the file can also apply to groups of meshes (toggling on/off a parent node that contains multiple child meshes in the hierarchy).
When toggling meshes and mesh groups on or off, the parent item in the 3D model's hierarchy will take precedence.
For example if GROUP contains MESH and you set GROUP to be disabled, then MESH will be always be disabled, even if explicitly set to enabled. This behaviour mirrors what you would expect in a 3D editor or game engine.