Topic: Comments in redmine

I welcome we Try to use in operation redmine, basically, after setting of several plug-ins it suits us, but there is one moment which was to be solved: how it is possible to trace appearance of the new comment to  by means of the filter? Now it is not convenient in this sense - if to write a comment the filter it is impossible to select all  demanding back coupling. If to write  and to change the status on feedback it is possible, but it is not clear from whom wait back coupling. Or I answered also itself delivered  earlier or to me already answered and delivered . Whether i.e. it is necessary to view all  with  it is necessary to understand something from you. Probably there is a plug-in any or prompt as to adjust conveniently? In an ideal something of flag type "is not read" at change , dropped after review. As in mail