Filters are one of the most powerful tools within TrackStudio, they are used for filtering tasks and messages, setting the email notification rules and designing reports. The process of filtering results in a set of tasks and messages meeting certain conditions. Filtering tasks by messages is a very powerful feature of TrackStudio, which allows, for example, getting the list of tasks that were modified the day before and the list of all the comments for those tasks. If necessary, the result of filtering can be sent via email at regular intervals. 

TrackStudio allows inheriting filters, as is the case with many other objects. It means that a filter specified for a certain group of projects will be available in all its subprojects. 

Filters can be either private or shared. Private filters are available only for the user who created them. If the user has no access rights to some task, he/she can create only private filters for it. 

When modifying a filter, you can set the filter parameters both for tasks and for messages.