When opening/working with a bigger JSP document, it's nice to get an overview what parts use what tag libraries. My first response was to use "Highlight Usages" (Ctrl-Shift-F7) on the prefix of the specific tag library. This works, but only in "raw character"/"green" more, eg. no semantic understanding. Since taglib prefixes are ofter just a couple of letters ("c" is the common prefix for the JSTL core taglib) this lessens the utility the function. Make Ctrl-Shift -F7 understand usages of taglib prefix.