Tracking leaks with a QC Plugin

Hi all !

I am trying to unleak a plugin I made, where appears a huge "strange" leak with NSCFNumber, that I can't understand as there is no information available about the responsible allocation in the code.

I'm trying to find where to launch Instruments directly from XCode for a QC PlugIn, but can't find if it is possible. It seems it is not.

Am I right ? Or, is there a "custom way" to do it ? When I launch Instruments and attach to QC process without launching from XCode, the available informations don't help a lot.

Thanks in advance for any advice !

Ben