Set 'ftime' (fime timestamping) in SX1303 gateway

Hello All,

I would like to add the optional feature of ftime in rxpk for the SX1303 gateway.
The reference Support ftime and foff for SX1303 suggest that ftime feature is optional and available in SX1303.

The documentation is not available on how to set the ftime in rxpk.
Could anyone help me out here to solve this problem.

Many Thanks,