setup configuration for Xcode allocations profiling instrument

Question

I'm trying to figure where is the cause of the memory leak in my iOS app. In one of the tutorial I've found online, the Allocations screen looks something like this. It HAS a configuration pane on the lower right corner of the window.

Allocations screen according to the tutorial

However, mine looks like this My Allocations screen

Mine doesn't have the configuration pane. How do I import it? I need to use the record reference count features and cannot set it.

My XCode version is 10.4