syedo,
PF - alt window 10k, hdg off airways,
Not in the UK please ...
http://www.nats-uk.ead-it.com/aip/current/aic/EG_Circ_2009_P_052_en.pdf
"...Therefore, if able, pilots should remain on the assigned route or track whilst carrying out the emergency descent; unless to do so otherwise would endanger the aircraft ..."