Like in MS Visual Studio, find next occurrence of the word under cursor.
The shortcut should be Ctrl-F3.
Set "Find uses selected text" and see if it works for you.
If Find has never been primed with a selection, it will open the dlg box.
But after the first Find, it will find newly selected text w/o poping the dlg box.
Be careful about the Selected Text vs Global bullet, else it might keep telling you nothing found.