The option to Auto-Adjust Ends of Linear Framing is now available in BC Framer, Program Settings. Leaving this set to "No" will allow you to define the left end of a member. If you allow the left end to be defined you should enable the program to show the Left End indicator.
If Auto-Adjust Ends of Linear Framing is set to "Yes" the left end will always reset to Left or bottom as viewed on the planview window. You will not have this "Redefine Left End" tool in your right-click menu.
Only available if the property is set to "No".