Change of "Gas allocation date"

Hi experts,

I'd like to manually change the "Gas allocation date" of a Meter reading document : EABL-THGDATUM

I do not want to use  EXIT_SAPLEL01_009 (IS-U: Change Gas Date in Meter Reading Processing).

Could you tell me if it is possible with SAP standard transactions?

Thank you for your help.

Regards,

Philippe