In File Locator Pro Internal Editor, there is already an item on the context (right-click) menu to Find (in the current file) based on the current text selection.
I suggest a similar feature to create a new Search (across multi-files) based on the current text selection. The new search would appear in a new tab, and choices for the new search can be cloned from the current search, such as File name, Look in directory and so on. The cloned choices may not always be perfect, but often are, and, if not, require only minor changes.
Use case: This would be fantastic for quick exploration of source code trees. Following symbols to their definitions and usages.