If you want choice field options to accept a limited number of selections, you can enable this feature from the Form Editor. Once an option is unavailable, it will be grayed out on the form.
1. Click on the choice field to open its Edit Field panel on the left side of the page, then scroll down until you get to the Options section.
2. Once there, click on the Limit choices option. Afterward, you can Configure the values for each choice individually and add your preferred limits (or you can set a default total for all your choices).
If the limit for a choice has been reached, that option is automatically grayed out and cannot be selected anymore by form users. To make the choice grayed out from the beginning, simply type -1 as the Total value.
You also have the option to Reset every day. Don’t worry, enabling this option will not delete your previous submissions. You can still find them in the forms Submissions section.
Select the Show no. of choices left option. Form users will then be able to see the remaining available options for each choice.