We are great fan of Redmine project managing systems. During our work we analyzed what can be improved and added it to the Redmine.
Step by step, such ideas transformed into plugins:
https://github.com/Gera-IT/redmine_edit_issues_inline Redmine_edit_issues_inline → is a plugin that allows you to edit issue attributes in line without the need to go to show page, while wasting time for page loading