Cannot show some system fields in form designer

Dear Support,

In form designer, when using dynamic field, I found that the system fields only show ‘ID’, ‘Created Time’ , ‘Created By’. But, cannot find the system fields ‘Created By’, ‘Modified By’.
Is it a bug or needs any setting? Please advise.

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Thanks a lot!

Regards,
May

Hi May, The ‘Created By’ and ‘Modified By’ are user-type fields. Please use the Dynamic user control instead.

Thank you very much!