On the Standby Engine Indicator (SEI) on the 757 you get LCD style displays of:
EPR
N1
EGT
and
N3 (RR Engines)
on the 767 you get:
N1
EGT
N2 (GE Engines)
The SEI will activate on loss of AC power or on EICAS failure
when selected in the auto mode.
Specific to 757/767 only in our configuration, but I hope this gives you an idea.