On the Tools menu, click Project Options and navigate to the Define Blocks With External Sources tab. Identifying sibling projects allows BuildPlus to search those projects' databases for additional tag sources.
After selecting sibling projects, each of projects should be built consecutively twice, i.e. 1,2,3 then 1,2,3 so each of the siblings have access to each others project files. If one sibling cannot find another, there will be an error message in DBDOC.ERR such as "SQLite Open Exception: Open ... NoSuch.dbdoc code 14: unable to open database file", which will disappear when all the projects have been rebuilt.
Check or uncheck the boxes beside the project names to include or exclude those projects as sibling projects for future builds of the current project.
If you prefer to no longer be asked about sibling projects during a build, check the box for Do not show this during the build.
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