Use the History tab of the Master Settings window to control the way that items are recorded on the History tab:
uAlways: All of your connections to Host computers are reported on the History tab.
uOnly if tab is not hidden: Your connections to Host computers are reported on the History tab only when the tab is visible.
uNever: Your connections to Host computers are not reported on the History tab.
Also, you can limit the number of connections to save on the History tab by specifying a value for Maximum number of connections to store (default = 20).