Set up no. of comments as a rule for group promotions

[Sam Brown]

Hi
We are trying to promote our members to groups and the rules has only the following criteria for content posts and comments:

Content Count:
Reputation :

Is there a way to add a rule for comment count ?
Also is there a setting available to change what should be counted in the total of a content count ?
for example : only no. of posts should be counted in "content count"
 

[bfarber]

Content count includes new content items, comments and reviews (in areas that increment the user's count).