Thank you for providing access to your application. It is quite specific and therefore the approach to automate your tests against it could not be straight forward. You will need to turn your steps into code and modify it a bit.
Each field on which you click using a Desktop click becomes active and you could type in it. Desktop click contains 'ScrollToVisible' method which in this case should be removed. To do so please add the click step using the Step Builder
and turn it into code. Then please comment the second row which scrolls the element to be visible. This will make the required field active and you could send keyboard keys directly to it. Second important thing is that the application does not support UniCode and this should be included in the type method. Here is a sample of what you need to include after the click.
, 50, 100,
I hope you will find this information useful to handle your automation scripts.
Telerik by Progress