An entire htpd.conf file? Or a domain container httpd.conf file?
If the former; no, Apache requires one master httpd.conf file.
If the latter, well, yes and no...
You could probably write a post creation script which could make limited changes to the user httpd.conf file. But as far as making wholesale changes is concerned, not through DA, and you need to be careful that DA won't overwrite any changes you do make.
Jeff