Originally Posted by
Andre Carvalho
Edit your family, and look for the reference planes there. Verify if the one at the center of your family is the one set to "Center (Left/Right)" or "Center (Front/Back)". You can find this by selecting the reference plane > Properties > Is Reference : Center.
You can only have one "Center (Left/Right)" and "Center (Front/Back)" in your family, so make sure they are the ones in the center. This is the plane that will define where the dimension should add the CL mark.
Andre Carvalho