Thank you for your inquiry.
We’re glad to hear you’re interested in using s2Member for your site. :-)
1, Can I manage Recurring Charge of CCBill by using S2Member?
I’m unsure what you mean by this. s2Member does integrate with CCBill, and allows you to make CCBill payment buttons to have your Customers check out with CCBill. There are buttons available to have Users sign up for a subscription, and s2Member handles demotions on cancellations and refund automatically. You cannot, however, see or edit your subscriptions with s2Member. You’ll need to go through CCBill to handle that.
2, Can I hide specific contents into the post to specific member level?
Yes. You can use s2Member’s Shortcode Conditionals to display content based on the level of the User, or if the user has a certain Capability. You can find info on this in your Dashboard here:
Dashboard -› s2Member® -› API / Scripting -› Simple/Shortcode Conditionals
And there is a Knowledge Base Article on Shortcode Conditionals here:
Knowledge Base » Simple Shortcode Conditionals