Missing debug tab in Android Studio

Question

first question here. Hope it goes well...

I'm novice in Android Studio, but used to have the debug tab and now I can't find it back (after collapsing it. I do have the logcat and monitors tab though... See printscreen. (As you can see, I don't have a small icon on the right top side of the window to click and reveal the debug tab, as is referred to as a solution in another thread.)

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What I'm looking for (such that I can debug line per line):

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Answer 1

Press Alt+5 to show the debug window