xml api reload apache after set additionnal directive for apache

i created user, subscription and other with xml api calls on plesk 12.5
the problem facing now, is that i can't set additionnal directive for php with xml api.
so, i setted the file independently of xml api.

after that , to have a functionnal website, i must use 2 comand line
/usr/local/psa/admin/bin/httpdmng --reconfigure-domain domain.ext
service httpd reload

but, the goal is to fully automate subscription and domain creation.

the question is.
can i do this with plesk xml api .?
or how...

xml api reload apache after set additionnal directive for apache