Suggestion about D+

I come from China.
Thank you very much for providing us with such excellent products.
I really like them, like CFP,CIS,CTM(COMODO Time Machine).The D+ (COMODO Defense+) is my favorite all of them.I really feel that it is already very good, but I would like to make a suggestion: It is about File Protection, for example, I would like to make rule to allow a file to be read, but can not be deleted, modified or created . In the present COMODO versions is not so subtle distinction between options(read、delete、modify、create), thus setting the lack of choice. I feel a little disappoint somewhat. Therefore, I suggest that you consider whether it can be added in the File Protection, and strictly to the separation of read, create, modify, and delete.
Your, Sincerely