For a character mode host, when the Field property FieldCursorPositioning is set to Custom Keystrokes, this property is used as a replacement for a calculated up/down/right/left or other special key sequences.
Enter custom keystrokes using the mnemonics for the known keys. Some screens, for example, use a mnemonic for each field, using a letter entry; the cursor is positioned outside of an entry field and the letter is sent. In this case, if a field has an "N" for "Name" as the letter, the keys for that field may be "[down]N" (the [down] in one screen we have seen will always move the cursor to the far left of any entry fields...).
