How to remove all instance in a repeatable subform (bis)

Hi Niall,

A few years ago, you helped a user who asked "How to remove all instance in a repeatable subform". Please could you do again with approximately the same problem ?

In a click event, I have the script "_CarteEN.addInstance();". Well ! Many cards appear. To protect them, I put above a mask (it's a button with a background Fill). Now, how can I do to remove all masks with only one click using the resetdata or anything else...

I try this but it doesn't work.

while (flowedSubform.CarteEN._CacheCV.count > 2)
{
     flowedSubform.CarteEN._CacheCV.removeInstance(1);
}

Many thanks for your help !