When exploring the call tree, function names quickly become not visible while traversing the tree and explore sub-functions. Please add horizontal scroll!
Also, Visual Studio profiler have great function "Expand hot path" which immediately shows the problematic path (in time profiler). It would be nice to have something like this in Xamarin Profiler.
Yes, that's why we have the 'drill-down' feature, so you can double click on a row on the call tree and it will show that node in the call tree as the root node in the UI view.
About expanding to the hot path, indeed, it's in the plan.
I have checked this issue with latest profiler builds and able to drill-down call tree data deeply. Hence I am closing this issue as of now.
Please feel free to reopen this if you are still getting this issue.