whats that silver nob on the centre console next to handbrake?? Intelligent drive select thingy?

__________________
2010 WRX

Built 2.5 Cosworth
Garret GT35R
ID 725 Injectors
HyperFlow CAI
MMS TBE
Ecutek with Race-Rom
Ksport 8 Piston Front BBK 13"
ksport 4 Piston Rear BBK 13"
TEIN SS-P Coilovers