In previous threads in these forums, there have been requests for more control over how extension and dimension lines break around each other.

The core ISO standard states that extention and dimension lines should never break around each other.  However, ASME does allow for one exception: breaking of extension lines around arrows that are on dimension lines.  This is the behavior that is supported by the option "Break only around dimension arrows" in Document Properties>Dimensions window.

With that setting turned off, you can tell a dimension to add gaps around any extension and dimension lines.  However, SolidWorks doesn't give you the ability to control what gets breaked when multiple dimensions overlap each other.

My question for everyone is this: what kind of behavior should extension and dimension lines show with breaks.  Should the user be able to choose what gets the break and where?  If so, how would you do this? And how should the setting "Break only around dimension arrows" be effected if more control is added?