The column size of built-in function returns the width of a column, in the coordinates of the textual region's parent. The value returned is an integer representing the X width of the column in the specified textual region. The width of the column is the width of a character plus the character's associated horizontal inter-cell gap.
In the following example, the key Logo is positioned in Product's parent such that it is visually just to the right of Product's text cursor:
green textual region Product size 100 100
at position 0 0 in CoData
response to ...
change Logo in CoData position to
((xcursor of Products) * column size of Products) 0