Quick Help
 
Select File :- You can select a file by clicking on the icon.
Details of the selected file will be shown in the left pane.
[Or Use Arrow keys]
Open Folder :- Double Click a folder.
[Enter] with a selected icon.
Edit File :- Double click a file for editing. [Enter]
[Enter] with a selected icon.
Delete :- Select the file and click delete button.
You will be prompted for a confirmation
[Shift+Ctrl+X]
Rename :- Select the file/folder and click rename button.
You will be prompted for the new name.
[F2]
Chmode :- Change permissions of files. eg: Php scripts requires 755.
Copy :- Click on a file icon and click the copy button.
You will be prompted for the destination folder.
[Shift+Ctrl+C]
Thumbnail :- Select the file and click the thumbnail button or
Enable in 'settings' for all images. Available for jpg, gif and png
[Shift+Ctrl+T]
Download :- Click on the file name below its icon.
Extract :- Select the zip file and click the extract button.
[Shift+Ctrl+E]
Edit HTML :- Select the HTML file and click the link on the left pane.[Shift+Ctrl+H]

You can right click on a file icon to get a context menu.