Thank you very much for your answer. I have two versions of max on my computer, one is 2024. Of course, I have solved it and can use it. Similarly, I can use your script on max2025. In fact, you can put the script in C:\Program Files\Autodesk\3ds Max 2025\scripts\Startup. In this way, it will not be reset countless times. Put the script in the folder you pointed out.