For downloading and uploading:

To download file: selecting a file from right pane, and then clicking on .

To upload file: clicking on Browse button in left pane to select file, and then clicking on .

For accessing a folder on server:

To create a new folder: clicking New under Folder section in right pane.

To open a folder: selecting a folder, and then clicking on Open under Folder section in right pane.

To rename a folder: selecting a folder, and then clicking on Rename under Folder section in right pane.

To delete a folder: selecting a folder, and then clicking on Delete under Folder section in right pane.

For accessing a file on server:

To copy a file: selecting a file, and then clicking on Copy under File section in right pane.

To rename a file: selecting a file, and then clicking on Rename under File section in right pane.

To delete a file: selecting a file, and then clicking on Delete under File section in right pane.

Note: The button is disabled when it is in gray color.