Time stamp at FTP transfer (SPD8020, FW7.0)

Hello,
I am using the NAS for backup with FTP transfer.
For this case the FTP server must support the MFMT -Feature, so that the time stamps of the uploaded files are like the original.
So I was glad to found the FW-software (thanks to all who are working on it) and I hoped that version fw7.0 can support this feature.
But it isn't:
Befehl: FEAT
Antwort: 211-Features:
Antwort: MDTM
Antwort: UTF8
Antwort: LANG en-US*
Antwort: REST STREAM
Antwort: SIZE
Antwort: 211 End
Are there any solutions or updates planed to modify the FTP-server on the SPD8020 ?
Thank you in advance.
I am using the NAS for backup with FTP transfer.
For this case the FTP server must support the MFMT -Feature, so that the time stamps of the uploaded files are like the original.
So I was glad to found the FW-software (thanks to all who are working on it) and I hoped that version fw7.0 can support this feature.
But it isn't:
Befehl: FEAT
Antwort: 211-Features:
Antwort: MDTM
Antwort: UTF8
Antwort: LANG en-US*
Antwort: REST STREAM
Antwort: SIZE
Antwort: 211 End
Are there any solutions or updates planed to modify the FTP-server on the SPD8020 ?
Thank you in advance.