Project View:

We have added a new feature to the ArduinoIDE interface : a toggleable Project view. It allows you to quickly manage files in your sketch folder (add, delete, rename, drag and drop files).

You can also navigate to other directories easily using the navigate button in the project toolbar to open sketches that may not be in your sketch folder without doing it manually using your preferred file explorer.

PS : You can activate/remove the view from the tools menu up top or using the shortcut ctr-shift-J.

Special thanks to Ricardo JL Rufino:

We used his projectexplorer library in the implementation of this feature