How can I delete comment history by batch?

Question

I am looking for the function of BPC Version 5.1 to delete the history of comments by batch.
On the WEB interface which refers for a comment list, I listed the history of the comment and chose the check box of the comment which should be deleted.
And then it is possible to delete selected comments.
However,
when there are 100 comments, it is necessary to choose a check box 100 times.
This will be the operation which time and effort requires very much on actual business.
Are there any methods(as following) of deleting comments by batch?
a) Is there any method of specifying DATA REGION and deleting comments of the specified range by batch?
b) Is there any mode of operation which does not leave comment history (a comment is overwritten)? 
c) Is there any function to delete a comment history by batch processing (BPC Data Manager Packages)?
Thank you in advance.
Masashi Ashizawa

Answer 1

Masashi,
Joost is correct that we may use a data manager package to clear comments in a batch process.  But I wanted to add that comments are not stored in the DB for any dimension combination, unless they are added using the Excel and Template interface, either by means of the Action Pane or an EVCOM statement. 
All comments are independent, by user and importance. So each comment to an intersection is held, and I dont think that you can overwrite a prior comment, only delete the comment. WHen submitting a comment, if your EVCOM statement only has 4 of 7 dimensions identified, the comment is related to those 4 dimensions via the members in the EVCOM statement, even if they are PARENT levels. (unlike data which must be entered at the lowest dimension member levels)  Clearing the comments may also be achieved by using the BPC Excel interface Action pane which directs you to a comment web page where you can review, edit, and delete comments. But there is not a "Batch" deletion process inthe interface. I would suggest this to development as an enhancement.