Mandatory slider question: checkbox "don't know/cannot answer"

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2 Jahre 9 Monate her - 2 Jahre 9 Monate her #110184 von j_heiner
Hello all,

is there a way to add a checkbox to a mandatory slider question giving the user the option *not* to move the slider but to check the box which says "don't know" or "cannot answer"?

Thanks,

Heiner
Letzte Änderung: 2 Jahre 9 Monate her von j_heiner. Begründung: added greeting

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