TValueListEditor and itemProps.EditStyle

[softtouch 5]

I have an empty TValueListEditor on the form.

user enter the key, and select the value cell to enter the value. How can I show the ellipsis in the value cell at that time (when the user select the cell)?

For example, there are some key/value pairs already, and the user add a new row by pressing cursor down key in the last row. The new row appear empty and I can type key and value. But I cand display the ellipsis in that new row so the user could click the ellipsis instead entering a value.