You can use
col << get property("<prperty>");
to get whatever information you want.
You may be able to get the information you want by using the Column Viewer with it't "Find Columns with Properties".
Finally, one item I hae used is to use
dt << get script
It will detail all of the properties for each of the columns. However, since it will also contain all of the data for the data table, I typically delete all of the rows in the data table, and then use the << get script.
Jim