NFS | /etc/exports | all_sqash

I’ve got a Gen2 device and
I’d like to change the /etc/exports file in order to be able of changing the ownship of files on the NFS share. The default setting is that with the option “all_squash” everything is mapped to the nobody account, which makes a chown on files not possible. This options seems to be hardcoded in the programm “nfs_config”
Does anyone know a workaround to change those options ?

Hopefully an experienced User will be able to assist.