Save SAM outputs files

Kneaddata version 0.10.0

I would like to know if its possible using kneaddata to save the SAM files produced by bowite2? By default the code write sam file to dev/null/ I will be interested to keep the SAM files from the mapping to the human genome.

I tried by passing this argument: bowtie2-options " -S kneaddata_output/" or “-S ./”. But the log keep indicating -S /dev/null

Is it possible without editing the file

I thank you in advance for the help.