Hi folks,

Laren's comments prompted me to remember two minor features I
should have mentioned long ago.

By default, the center cross-hair and the symbol used to
indicate picked objects are the same: a simple "plus-mark".
However, you can add lines such as the following to GUIDE.DAT:

PICK_SYMBOL=e0,0,20;
XHAIR_SYMBOL=e0,0,30;m-50,0;l50,0;m0,-50;l0,50;

The first line would cause the symbol used to indicate a picked object
to be a small circle. The second line would change the symbol used for
the central cross-hair to be a circle superimposed on a plus-mark.

The symbols are defined in the same manner as those for user-added
datasets; that format is described in the Guide users' manual,
chapter 20a, "Defining your own custom .TDF symbols". It's also
discussed a bit at

http://www.projectpluto.com/tdf_info.htm#custom_symbols

The symbol definitions are quite straightforward, though it may
take a try or two before you get exactly what you want.

-- Bill