mapping group to course question

hi
1-i use Course Groups component to map my joomla user group into the course moodle enrollment. i want to know what about subgroup ? for example if i create mapping between joomla group A and course 1 , and i have usergroup B in joomla as child of group A, is group B enroll to course 1 ?
2-also you say :
"Enrolments are updated on login and profile updates." in that link:http://www.joomdle.com/download/category/7-components-additional
if my user login from moodle mobile application or login direct through moodle,can he enroll automatically to that course create in the mapping?
thank you...

Hi.
1. No, I think subgroups are not accounted for.

2. I would say yes, but I would need to confirm it. You can try and let me know your results too.