shift backspace returns `^?` [duplicate]

shift backspace returns `^?` [duplicate]

References

Reference NO 1

http://webdesignerwall.com/tutorials/photoshop-secret-shortcuts

Reference NO 2

http://www.gilbertconsulting.com/pdf/InDesign_CS2_shortcuts_win.pdf

Reference NO 3

http://sublimetext.userecho.com/topic/245163-shift-delete-backspace-mapping/

Reference NO 4

http://www.shortcutworld.com/en/mac/InDesign_CS5.html

Reference NO 5

http://www.jetbrains.com/idea/webhelp/basic-editing.html

Reference NO 6

http://www.smashingmagazine.com/2010/01/20/obscure-adobe-photoshop-time-savers/

Reference NO 7

http://www.nobledesktop.com/shortcuts/photoshopcs5/pc/

Reference NO 8

http://www.ccsf.edu/Pub/Fac/vi.html