How to debug engine source for ios?

for the first time i am working on ios and so on xcode.
so i am having tons of problem to debug the code. is there any tutorial or useful thread on debugging c++ code for ios?

side question:
on android , i had

which was a life saver for me.
is there anything like that in ios ?

thanks

There are 2 xcode projects under YourGame/Intermediate/IOSProjectFiles. Open them side by side, and drag UE4 project source code to YourGame project tab (Xcode sucks, you need to first open a source code file in YourGame project, so to drag another source code file into it).

Then place your breakpoint for UE4 source code file in YourGame project’s GUI, and run your game project. Then you have it!