If you set a breakpoint on a line that is ambiguous, this option names which instances to enable. Use the
dactions command to obtain a list of these numbers.
The denable command reactivates action points that you previously disabled with the
ddisable command. The
–a option enables all action points in the current focus.
Enables the action points associated with blocks 3 and 4. That is, one logical action point can map to more than one actual action point if you set the action point at an ambiguous location.