Marking new comments

[gennadyd_cf]

I am using Vienna primarily for reading RSS feeds generated by the LiveJournal with viewing the articles as a Web page (to see the comments). I am wondering if Vienna has an option to mark new comments appearing on the page e.g. arrived after the last visit - would be even better to indicate the number of new comments in the list of feeds. Or if such a feature can be considered as an enhancement for the roadmap.

If it is out of the scope of Vienna development, will appreciate you someone knows a good RSS reader with such functionality.