Files in abd U6 cannot be modified (including moving, deleting, etc.), but can be copied. How to solve this problem？
你好 请参见如下链接检查一下
https://communities.bentley.com/communities/other_communities/chinafirst/w/chinawiki/45170/page
（如果您对我的回答满意，望您帮我在more选项下“Verify Answer”，如没有欢迎您继续跟帖，我将为您进一步解答）