This editor is displayed when you click on the button in the Columns property in the TTASDataGrid object. This is how you will create the TTASDGItems. The following is displayed when you click on the button:
For each item you add, or when you click on the appropriate line, the properties for that column will be displayed in the Object Inspector.
ACTIONS
This refreshes the properties for the object. If something you have changed effects other changes, and they don't show up automatically, you can see those by clicking on this option. In general this won't be necessary.
If the properties for the object are not displayed you can bring them to the front by clicking on this icon. Generally, if you click on the window the one of the columns will be set active and displayed.
Click on this icon to add a new column. This will always add to the end of the list. If you want to insert a column click on the appropriate line and press the INSERT key.
To delete a column click on the line representing that column and then this icon. You can also just press the DELETE key and get the same result.
NOTE: You can move columns around by dragging the appropriate line and dropping it where you want.
Page url: http://www.cassoftware.com/tas/manual/datagridcolumnseditor.htm