Pass through not working

The Audio hardware and software configuration says:

Which LPCM output formats are supported by OSMC devices via HDMI and S/PDIF?
• Vero 4K/4K +
• HDMI: a samplerate of up to 192 kHz, a bit-depth of up to 24 bit and all channel layouts from 1.0 all the way to 7.1 (the surround center channel of 6.1 is mapped equally to both 7.1 back surround channels)
• S/PDIF (built-in TOSLINK): a samplerate of up to 192 kHz, a bit-depth of up to 24 bit and 2.0 channels

I understand this as build in TOSLINK has a limitation and supports PCM and 2ch only. No way to carry 5.1. Right?