As you may know, for as long as it has existing, the Transformer tool has been a quick and easy way to do just 1 thing - mirror your project
As of the most recent update, it can now do some new tricks - specifically, it can now Rotate the whole project, or Move it by either choosing a new location to move the project to, or by choosing where the Project Origin should be shifted to, and moving the model to reflect that
Just choose the type of Transformation you want to apply, and then follow the prompt on the bottom-left to tell the tool what you want done, and let it take care of the rest!