Session Profiles → Options for the VT/Xterm/ANSI Emulations

VT and their derived emulations originally only supported 8-bit character sets similar to Latin-1. This option changes the behavior to interpret 8-bit characters as UTF8, which is the common standard for Linux hosts these days.

Some Unix applications (like Emacs or MC) are using the Alt-Key combinations to access special functions. Enabling this option makes Alt+Letter and Alt+Digit combinations send the pressed key prefixed by an ESC character.

Note: When you enable this option, you will not be able to access ZOC's menu shortcuts.

The original DEC terminals had the PF1 to PF4 keys located above the numeric keypad. With this options ZOC uses the key pads Num, /, * and - keys as PF1 - PF4.

This option affects the Xterm emulation and the keys Home, End, Ins, Del, Page-Up, Page-Down and the cursor keys. When the option is active, these keys will be sent to the remote host if they are pressed in combination with Alt, Ctrl and/or Shift. However, if the option is active, this will override some shortcuts within the ZOC menu (e.g. Ctrl+Page-Down for Download).

xterm adds a range of control codes to perform specific operations not native to the original VT-emulation (e.g. changing the program title or certain display features). ZOC VT-emulations support these, but allows to disable them.

The original VT-emulation were monochrome and did not support colors. ZOC VT-emulations supports color support with control codes, which were borrowed from the ANSI terminals. If necessary these can be disabled.

In VT102 mode the numeric key pad is used as a replacement for VT102 auxiliary keypad (see VT102-keyboard). This can be problematic if you are using the cursor keys in the numeric keypad instead of the gray cursor keys. Enable this option, if you want to use the cursor keys in the numeric keypad and if your remote application does not use the VT102 keypad.

See VT Keyboard for a description of the keypad.

When enabled, the backspace key sends the ^H code when backspace was pressed (otherwise ^?/7F is sent). The Del key remains unaffected.

If you enable this option, a backspace (^H) is sent when the DEL (^?/7F) key is pressed and vice versa.

This options erases characters from the screen if a backspace is received. Otherwise the cursor merely moves back one step.

Typically on hardware VT terminals, the F5 keys has a local meaning and is not transmitted to the host. This option allows to shift all F-keys to the left, sending F5 as F6, F6 as F7 etc..