Ctrl Shift LMB to hide mesh in scupt in 2.54?

Did this change or have I missed something? I can’t get it to work at all in 2.54 but it seems to me it used to work in 2.49. I’m normally in 3 button mouse emulation but turning that off seems to make no difference.

When I do Ctrl Shift LMB and drag in sculpt mode nothing happens, there’s no box nor does anything get hidden.

Bump - This appears to still not work in 2.55

Anyone have any thoughts on how to hide part of a mesh in 2.55 sculpt mode?

ALT+B key will this work? does in 2.55. You mention both 2.54 and 2.55.