Dear all, I'm trying to figure out how to do Properties search by define an agenda command. Here is my item in org file: *** Franz Schwabl / Quantum Mechanics :PROPERTIES: :TITLE: Quantum Mechanics :AUTHOR: Franz Schwabl :CATEGORY: Quantum Mechanics :TAGS: Quantum Mechanics, Group Theory :KEYWORD: Quantum Mechanics, Perturbation, Second Quantization :LOCATION: iTune :END: And I want to define a agenda command to search this item out. I've tried this one, but did not work: ("19" "TEST" occur-tree "Title="Quantum Mechanics"") ("19" "TEST" tags "Title="Quantum Mechanics"") So is there anyone knows how to do this correctly? Thanks, Chao