We apologize for the instability of composr.app and appreciate your patience. We are working on the statistics addon and trying to find an optimal way to store and render data. Unfortunately, we have yet to find a solution that can handle the traffic (and therefore, tens of millions of statistical records) of composr.app. We're working hard on one.
2nd issue relates to CKEditor "Magic Line" feature:
http://ckeditor.com/addon/magicline
I had to enable it everywhere in the config, then mark the block Comcode tags as block tags in the CKEditor DTD.
[semihtml]
[tabs param="xxx"]
[tab default="1" param="yyy"]
<div>
</div>
[/tab]
[/tabs]
[/semihtml]
2nd issue relates to CKEditor "Magic Line" feature:
http://ckeditor.com/addon/magicline
I had to enable it everywhere in the config, then mark the block Comcode tags as block tags in the CKEditor DTD.