Methods and Tools to Create Your Games - Learning Unreal Engine iOS Game Development - page 39

• When you use custom functions or events, if you double-click on the function/
call, it will move your graph to show you the original function/ structure so that
you can make changes to it. It is a very useful trick, which can save much of your
time if your graphs are gigantic.
• When you add a new variable, let's say a Boolean (which means it is a variable
that takes either a True or False value), you will be unable to set a variable's
default value until you press the Compile button in the top-left corner of the edit-
or. So, as with the code, you need to compile and run to see the result, but in a
faster way. Then the question mark on the button will change to a true green mark
post, after which the default values will be editable.