How to create a "select all" option to automatically choose all in a select many question?

[Kal_Lam]

@dkiyiola, you could do it as outlined in the image shared below:

In the survey tab of your XLSForm:

In the choices tab of your XLSForm:

Data entry screen as seen in Enketo:

Reference XLSForm:

Select Multiple (PreFill).xlsx (13.0 KB)