I am using Sublime 3 but I am a newbie. I was trying to define some preferences, like the font size. However, I messed up things and I am not being able to restore.
Currently, I have this two windows "dashboard":
How can I restore it to the default one-window view?
I tried to look for things over the preference menu, but checking/unchecking all the available options did not help me to solve this problem.
It looks like you added an extra column. Try going to View, then setting Layout to Single or use the keyboard shortcut: Shift+Alt+1
.