I will just copy my reponse from your other thread here:
Thank you for taking the time to share your thoughts. Your case is indeed a valid one and we have been working on implementing it. You should expect seeing it in one of the Control Panel's next versions.
About a warning for removing all previous versions - we have such a warning (image attached). We tried to make it less obtrusive, as our guess was most people will be happy with the default behavior.
All the best,
the Telerik team
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