Synchronize files and directories

Using the synch type backup for files & directories…

I would like to be able to select c:\test

Then exclude (by un-checking these dirs):

Then finish the backup.

Now if a new directory is added such as c:\test\newDir - This new dir will not get synched. What is the CB configuration to allow this new dir to be synched (after initial backup has been created?)

Option 1. It would be unfortunate to have to recreate the backup (and remember to.)
Option 2. Do not exclude any dirs from c:\test (not desired)

Any advise is appreciated.