how to open pictureflow via hot key ?

[ForteD]

please help me, I don't know how to open pictureflow via hot key , I try to use google but not luck. And how to use hot key, I try to press select + play but nothing happen

I try the patch http://www.rockbox.org/tracker/11270, I following this guide to patch http://www.rockbox.org/wiki/SimpleGuideToCompiling, but I don't know where src/apps/lang/english.lang, src/apps/plugins/pictureflow/pictureflow.c, ... etc, in folder .rockbox on my ipod not have pictureflow.c, english.lang, ... etc. So I can't use command patch --binary -p0 < patchfilename, it say: can't find file to patch at input line 5 ... file to patch: