Do you recommend to use both the classic design and modern design in one project?

Do you recommend to use both the classic design and modern design in one project? If you do, could you give me your suggestions on when to use which design mode? I really appreciate it.

@yu.xingxing

Have a look below thread.

Thank you, and do you usually to use modern design activities when you can’t identify an element in the user interface? In this case, you will find both classic design activities and modern design activities in your project, will this improve the stability of your process or decrease?:relaxed: