The File handling » Save branch of Settings includes the following options.
This option instructs the editor to write the UTF-8 BOM (byte order mark) to all files when they're saved. If this option is not set, the BOM will not be written to the file when it is written to the disk. This will not remove a BOM that already exists in the file. See more about BOMs in the Unicode text and files power tip.
This option instructs the editor to write the UTF-8 BOM only to new files created within the editor when they're saved. If this option is not set the BOM will not be written to the file when it is written to the disk. This will not remove a BOM that already exists in the file.
This setting will force the editor to automatically remove the trailing white space (spaces / tabs) from the end of every line in the file and positions back to the original caret position when it is complete each time a file is saved.
If this option is selected, then a Save As operation or saving a new, unsaved file (i.e. "Edit1") will default to the last directory used for a Save As operation.
If this is not selected (or if a directory has not yet been specified), a save of a new, unsaved file will default to the directory the last file was opened from using the File open command in the current or previous editing session.
The "Save as" dialog always opens in the directory of the named file when working with a file that has already been saved.
If this option is selected, the "Encoding" dropdown in the Save as dialog will always be set to "Default" when the "Save as" dialog is opened. If this option is not selected, the "Save As" dialog will remember the last option selected.
The option is provided to automatically save all open files at the desired interval, configurable in minutes. If the interval is set to zero (0) no automatic save is performed.
If Do not auto-save unnamed (new) files is selected, the automatic save will ignore new files that haven't yet been saved to disk. This prevents the "Save as" dialog from appearing if an unnamed file exists and has been modified.
If Do not auto-save FTP files is selected, the automatic save will ignore modified FTP files that are open.
If a file is saved due to the automatic save command a backup file (.bak) is only created for the first save of the session. For subsequent saves with this feature the .bak file is not created or overwritten.