Pressing Control+Open Apple+Reset will cause the Apple //e card to reboot.
Unfortunately, it also appears to queue up a reboot in the host Macintosh as well. After using Control+Open Apple+Reset, quitting IIe Startup
will cause the host Macintosh to reboot immediately.
To avoid a Mac reboot, always go to the IIe Option Panel and select Restart IIe
from there.