Darkijah: How do I move the Custodes or help guards to the left on the staff?

[darkijah]

Hey all, still working and using Lilypond with Frescobaldi - moving 
forward little by little and having lots of projects overall with it.
But I was thinking, is there a way to move those note guards at the end 
of the staff to the left? the tail is outside the guard and I kinda want 
them to be inside it like it was done in the 1600 century :)

Thanks and may Jayshua bless you :)
- In Christ Darkijah