How to use "Find in Files" to search lib_extra_dirs

Is there a way to use the IDE’s “Find in Files” to search directories added in lib_extra_dirs? I’ve got some code that is common to multiple projects, so I’ve added it to platformio.ini with:
lib_extra_dirs = ../src_common

Everything builds fine, but if I use “Find in Files”, it does not search through my …/src_common directories. Is there a way to add to the search path?