Here are my assignments if it helps you decide what to do with your open slots:
CRTL+1: sp_who
CRTL+2: sp_lock
CRTL+3: sp_who2
CRTL+4: sp_spaceused
CRTL+5: sp_monitor
CRTL+6: sp_tables
CRTL+7: sp_columns
CRTL+8: sp_stored_procedures
CRTL+9: sp_helptext
CRTL+0: select * from