global option and action sub-option

Hi:
    I want to rewrite my old rdiff-backup script to use new syntax. 
however I found the parameter order is very important. so command like
"rdiff-backup remove increments --force --older-than 7B my-backup" won't 
work since "--force" is a global option.

    my script collects parameters from config files and append them as a 
long string. it's hard to distinguish global option or action 
sub-option.
is it possible to relax the syntax so global option can be used as 
action sub-option?

    thanks a lot for help.

Regards,
tbsky