Redmine

Hello, I would like to ask is it possible to sort projects by their due date (and with hierarchy)?
Which file and line is responsible for that?
I will be grateful for any hints

Best regards
Rafal

Environment:
Redmine version 3.3.2.stable
Ruby version 2.1.2-p95 (2014-05-08) [x86_64-linux]
Rails version 4.2.7.1
Database adapter Mysql2
Server version: 5.6.34 MySQL Community Server (GPL)