If you want to assign different numbers to options or to set a limit higher than 10, you can do so by selecting Custom (the last option) in the dropdown list. Specify the number of times each option can be chosen, separated by commas. If it is set on 0, form users can choose the option for an unlimited number of times. If it’s set on -1, the option is automatically grayed out and cannot be selected anymore by the form users.
If you want to reset the limit, simply press Reset. Don’t worry, your previous submissions won’t be deleted. They will still be found in Submissions.
You could also set the limit to reset itself automatically every day. Just check the box Reset Every Day, under Reset. This option is available only when you have selected Custom in Number of times an option can be chosen.