Helo Andriy, it's me again ;-)
We've stumbled upon another (hopefully) small topic which would result in a great improvement for time-tracking.
Right now the TimeSheet plugin Dashboard view displays only issues (for a certain user or for yourself) which were used for time logging in the past days/weeks. Even if you choose a filter only those tickets are displayed with former time-logs.
As a result you can only log work times on tickets you already worked on - not on NEW tickets even if they are part of a filter.
When using a filter it would be great to have the possibility to choose yourself wheter only tickets with time logs OR all tickets from this filter (regardless of former time logs) should be displayed. If you choose this setting, it would result in constantly the same set of tickets (as set in an certain filter) beeing displayed... and you could easily enter time logs to all of these tickets.