In all flat views ( feature flat view and class flat view), a margin is displayed on the left of the editor. Breakpoints are there symbolized as circles, of a different appearance depending on their state: enabled (
), disabled (
) or not set (
). A small question mark in the circle (
,
)indicates conditional breakpoints.
Right-clicking on any breakpoint pops up a context menu:

Clicking one of the three first entries of the context menu changes the state of the breakpoint that was right-clicked. The last entry ( Run to breakpoint) launches the debugged application so that it will stop as soon as the selected breakpoint is encountered, as if the breakpoint had been enabled.
See Also
Breakpoint commands
Breakpoint information command