I should be able to filter the content of the build time table using column-specific filters. To see an example of such filters, visit: http://www.yoctoproject.org/webhob/phase3_final_web_prototype/project.html Then click the arrow next to the "Completed" column heading. The filter design for each column and the specifics of the filtering behaviour are TBC.
The filters in this table are the same as in the tasks table. See bug 4278 for design documentation.
Fixed with 4275.