How to avoid resetting quantity field

Hi,

I would like to ask a question regarding with this plugin.

Is there any way to prevent the quantity fields to set back to 0 when?

Here the case. I’m using checkbox here as an option. When someone choose a task service a quantity field for that task will show up and set the quantity.

However, when I already choose a task and set a quantity for that task when I click another task, the quantity fields for the first task reset back to 0.

How to avoid that?

Thanks

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