Hello 4ward s.r.l.,
RadTimePicker supports the directly entering of the time value. The format of the selected time depends on the setted Culture property of the control. For example:
The entering of only 4 characters by setting a property from the RadTimePicker control is not supported. We are working on adding a Select and SelectAll method to the control. Let us know if you need any other help.
the Telerik team