Table grid color and raw RTF tags insertion

1) How to change a table grid color?

2) Is this possible to use RTF formatting tags directly?

For example, I prefer to write a single code line:

InputString('\b Bold text \b0 ')

instead of three:

CurrAttr.Style:= [afsBold];
InputString('Bold text')
CurrAttr.Style:= [];

TableCell.ASet(WPAT_BorderColor, colorindex)

Setting a border for every cell means a lot of code overhead.
Do any more global settings exist?
Is this possible to set a table grid color for whole table or whole document in single code statement?

Since by default it is black may be there are some means to change that default?