Hi LeChatDissident,
This issue must be happening because all objects are as child of an another object, I just uploaded another Blender file with no parenting object
Hope it fix the issue
Look forward for your feedback
Hi, first of all thank you for uploading the Blender file. Now I am able to select and move all the meshes as I want !
There are still an issue with the textures. They seem to not have endured the conversion to Blender as most of them don't work (meshes and their textures are white).
I don't know how to slove the problem, but if it takes too much of your time I would understand.