BCTCalBarC is a control template to be dropped on a window. Notice handy Group surrounding Calendar Date selector to drag it around. Right Click on a control other than the group to delete the entire template and controls at once.  Because they are controls, you can change properties and salt to taste.

Auto Synchronize With BST is automatic, you cannot change it.  It looks for other templates in the procedure and automatically synchronizes with them to drive them.  You can only have one calendar in a procedure when using the other templates in the suite, it will drive all the other templates.

Date Display Format is how the selected date is displayed on the bar calendar.  Defaults to Windows Long Date for Machine it is being run on.  For Internationalization purposes.

Pre-Pend Day of Week to Display will add the Day of the week to the display, using the Days in the Day Names button.