Hello,
Asta Powerlines April 2012 (http://www.astadev.com/asta-powerlines-april-2012/asta-powerproject-hints-tips-april-2012/ [1]) features an instruction on how to sort your multiple assigned library codes. Step 2 of 'Sorting where multiple codes are assigned' shows an option to 'Show duplicate items for multiple assignments'.
I use PowerProject 10 and it's interface differs from the one of the version used in the instruction. In PowerProject 10 I can't find the option to 'Show duplicate items for multiple assignments'. Is this option not available in this version?