Allow users to add a tip in their payment

This is something I am wondering as well. Currently I have a dropdown from $1 to $10, I would like to let my customers tip a custom amount.

I checked your form, https://www.jotform.com/form/210375966769068, and I can see that you are already implementing somewhat the same as Option 1 in my colleague's workaround here.

If you would like users to be able to add a custom amount, you may want to refer to Option 2 on the same page:

How-do-I-add-Tip-in-the-Payment-Integration