We cannot give you any timeframe when this will be ready. We're building the Fiddler Everywhere roadmap based on the user feedback (votes in the feedback portal), impact and complexity of the feature.
Once we start working on this, we will update the feedback item to Under Development and it will be released soon after.
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Feedback Portal
and vote to affect the priority of the items