Tag in MXF and MP4 files

Hi
Can you add Tag <encoded date> in MXF files please?
Tag <Video Date Year:x> takes data from field <Recorded date>

But there isn't field <Recorded date> in MXF and MP4 files

Thanks a lot for your Job
Reply to #2:
Advanced Renamer doesn't see tag <enocoded day>
Reply to #3:

I know
I asked if developers can add this tag?
please
Reply to #1:
Yes, I can. But I need to know the exact name the field has. Do this:
Add the file to Advanced Renamer
Select the file
Click the ExifTool button
Send me the name of the field as written in the window

I don't have any XMF files so I am not able to test it myself.