To Create a Complex Shape Automatically

Select the Create Complex Shape tool ( Drawing > Home > Groups ).
Set Method to Automatic.
Select the first element.
Accept by entering a data point to automatically include other elements that are within the Max Gap distance.
If the elements do not have a common endpoint, they are connected.

If a fork is found; that is, if more than one element is within the Max. Gap, the message FORK — Accept or Reset to See Alternate displays in the status bar.
Do one of the following:

Enter a data point to accept the highlighted element.

or
Reset to highlight an alternate element. Continue to Reset until the desired element highlights.

Creating a Complex Shape. Method = Automatic, Minimum Gap = 5, Simplify Geometry = Off, Area = Solid, Fill Type = Outlined, Fill Color = Gradient