Thanks. I've tried that, but it seems I've added a conflicting alias, which prevented it from working. Now I've removed the conflict and it works.
Just a little clarification for the help file. It says:
Now you can type in your search:
+hexedit mydocsearch...
but probably should be:
Now you can type in your search:
mydocsearch +hexedit
Because if you type the alias in the beginning, it does not work (at least for me).
P.S.: I've just started using FARR and so far it is quite good!