How to initially select a cell of a tktable?

Question

I am using Python tktable (not tkintertable) for making a table with tkinter.

Now my problem is: I want the cell(s) from table to be selected initially. For example, when I open the GUI, cell row=1, col=1 will be auto selected.

I checked the tcl tktable manual, but no luck.

So, how to do this?