Hello Rieni De Rijke,
Thank you for contacting us.
The first and the second issues are bugs in our controls. We will fix them as soon as possible.
You can input text in the RadDateTimePicker because of a feature in the control which enables you to enter a day of the week and the current date will be parsed.
Please do not hesitate to contact us if you require any further information.
All the best,
the Telerik team
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