There are some good sketches in the 2711P User Manual that show the F-key and K-key locations for the various models of PV+ terminal.
I also rely on the key-mapping table in the User Manual to keep straight which control-key combinations are equivalent to K-keys for when I test my application on a PC.
Sometimes there's nothing equivalent to really seeing the screens; I recently loaned my keypad PV+1250 to a customer for a couple of weeks while he tests the exact alignment and user perspective of the keypad and screen in his enclosure.
But for general layout, just refer to the User Manual, 2711P-UM001.