As already explained, the purpose of the RadToolTip is to replace the standard browser tooltip and this is the main concept behind this control which should not be violated in order to keep the idea of the control. That is why unfortunately what you need to achieve is not possible with RadToolTip and we cannot suggest you another control of the suite which meets all these specific requirements. The code for a single tooltip cannot be overridden because it is in the core of the control and it is taken into account in all methods - even if we override all the occurrences this will most probably lead to many unexpected problems. A RadWindow control could be customized in similar manner /moved along with the handle but no callout/ as you want but again, since it is designed to be a dialog control and this is not its purpose we do not recommend to try to use it for this scenario.
the Telerik team
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