Booting from USB skips the "options" and goes straight to install

SNG7-FPBX-64bit-1706-1

Booting from USB goes right to step 7:

https://wiki.freepbx.org/display/PPS/Installing+SNG7+Official+Distro

It doesn’t for me. Are you maybe trying to use UEFI which is broke for USB install currently and being fixed shortly.