Searching the Project Symbol Path
Source Insight searches all open files and the symbol database for the current project. If the symbol is not found, then every project in the project symbol path is searched. If the symbol is still not found, then the Base project is searched.
If more than one symbol is found with the specified name, then Source Insight will ask you to pick from a list of the matching symbols, their locations, and types.
You can enable the Always search symbol path option in the Preferences: Symbol Lookups dialog box. When this option is on, all projects in the symbol path are searched every time Source Insight looks up a symbol, even if the symbol was already found in an open file or the current project. You may want to turn this option on if you want to see if there are redundant (or at least like-named) symbols in your project and any others on the project symbol path.