In order to change the default position of RadColorEditor elements, you can edit the default template of the control. You can take a look at the Editing Control Templates
help article in our documentation which describes how you can extract and edit the default template of the controls. In your case after you have extracted the template you can navigate to the Grid with x:Name="SectionsGrid" which holds all elements. Then you can create one column (for example) for this grid and wrap the elements in a panel so they can be position vertically.
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