C1TrueDBGrid, How to write the code for the 4 buttons?

Hi, Experts

I would like to write the code as attached image, which i have 2 C1TrueDBGrid (1 from 1 To).

For example:-
When i select 1 row at "From" Grid then press the ">" button then the selected row will be moved to "To" Grid.

Any idea about this feature?

Thanks
FromTo.bmp