This screen allows you to configure the break point options:

Asks for confirmation when a request or response is dropped.

The 'global' break point will only be triggered by requests that are in scope. Custom break points will not be affected.

If selected this will mean that ZAP stays on top of all other windows whenever a breakpoint is hit.

This controls whether there is a single combined break button on the Top Level Toolbar or separate ones for Requests and Responses.