TV Sender for streaming / Syphon / what (where are the) directories

First - thank you Boinx for the Sender for Streaming.
Im n OSX 10.9 (Mav) , where do I find the “Compositions” & “QC Plug-Ins” folder(s) to copy the .qtz and syphon.plugin to referenced in the Help PDF ?
Thanks for the help.
Jim

In the Disk Image containing the Help file and the plugins, there are links to the target folders. Just drag the files there.

thank you Bastian…