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If I understood you correctly you would like to have checkboxes on your form, which would in the same time help you with the limits on how many times each can be selected.
If that is correct, then I would suggest taking a look at the Gift Registry widget.
You can see here how to add it to your form: How to Add a Widget to your Form
If you happen to have any additional questions or issues, please do let us know and we would be happy to assist with the same.