How to display CustomControl in Caliburn.Micro?

Question

WPF

Hello!
There was a task to write the control element for work with the list. It can be implemented with standard WPF tools, or with Caliburn. In the last drawback, the main one for me is that in the editor mode in Visual Studio the control itself is not displayed, but only a place is allocated. And if you do it using standard tools, then everything is in order and you can immediately see the big picture in the place where my element was inserted.
The second is that in the ViewModel, when implementing a control through Caliburn, it is necessary to operate not specifically with a list of values ​​(IEnumerable, etc.), but with the ViewModel of the control.
Are there any ways to get around this using the same Caliburn or still leave this matter to the standard WPF tools?
Thank you!