According to bluelab3.5.2 example hid-keyboard to make applications, can be issued the number keys 1-5

hid_keyboard v1.10
..................\depend
..................\......\dsp.arch
..................\......\flags.merge
..................\hid_keyboard.h
..................\hid_keyboard.map
..................\hid_keyboard.psr
..................\hid_keyboard.psr.bak
..................\hid_keyboard.release.mak
..................\hid_keyboard.xip
..................\hid_keyboard.xiw
..................\hid_keyboard_auth.c
..................\hid_keyboard_auth.h
..................\hid_keyboard_aux.c
..................\hid_keyboard_aux.h
..................\hid_keyboard_button.button
..................\hid_keyboard_events.c
..................\hid_keyboard_events.h
..................\hid_keyboard_key_codes.h
..................\hid_keyboard_led.c
..................\hid_keyboard_led.h
..................\hid_keyboard_scan.c
..................\hid_keyboard_scan.h
..................\hid_keyboard_service_record.h
..................\hid_keyboard_sm.c
..................\hid_keyboard_sm.h
..................\hid_keyboard_vmprops.xml
..................\image
..................\main.c
..................\readme.txt

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