#       main topics:
UP      arb.hlp
UP      glossary.hlp
UP      arb_edit4.hlp
UP      helix.hlp

#       sub topics:
SUB     e4_options.hlp
SUB     toggle_secinfo.hlp

# format described in ../help.readme


TITLE		Define Helix Symbols

OCCURRENCE	ARB_EDIT4/Properties/Helix settings

DESCRIPTION

        Different base pairs in helix regions can be indicated by user-definable symbols.
        This window allows you to change the mapping between base pairs and displayed
        symbols.

SECTION Configuration

                Show helix: Toggle display of helix symbols

                Pair definitions. Each line contains two textfields:

                     The right textfield contains one or more base-pairs. Each base
                     pair contains two characters (bases, gaps-characters, ...).
                     Base-pairs are separated by spaces (' ').

                     The left textfield contains the helix symbol used for each
                     of the specified pairs.

NOTES

        - Pairs are not case-sensitive
        - If a pair is not defined in any line, the symbol given
          behind 'Default' is used.


EXAMPLES	None

WARNINGS	The symbols defined here will also be displayed in SECEDIT.
                You may define translation rules for these symbols in
                LINK{sec_bonddef.hlp}.

BUGS		No bugs known
