Hide pins in Jetson TX2 pinmux


I’m configuring TX2 pinmux for my own board. I cannot find some pins in the pinmux sheet downloaded, but I found some rows are hidden, like this:

Signal names and pin# are blank. So, can I reconfigure these hidden pins? If so, how can I match them with their pin#?

I think those are pins of the Tegra X2 SoC that are not physically exposed in the Jetson TX2 SoM, so no?