Steps can contain a breakpoint, a breakpoint is simply an instruction to SeqZap to pause the execution just before a step is executed.
Breakpoints for steps are inserted/removed either by right-clicking the step or by pressing F9.
When a step has a breakpoint, a red circle will be shown in the margin for that step.
The breakpoints view lists all the currently inserted breakpoints.
It can be accessed using the View menu in SeqZap Studio, or by using the keyboard-shortcut Alt+V, B.
Breakpoints can also be in-active, which means that they are inserted but SeqZap will not react to them.
When a breakpoint is inactive it will be shown with the outline of a red circle in the margin of the step.
