Mandate the sub-label/sub-choices in Conditional Classification

This is my custom template below:

<View>
  <Header value="Listen the audio"/> 
  <Audio name="audio" value="$audio"/> 
  <Choices name="ontology" toName="audio" zoom="true" showInLine="true" hotkey="ctrl+enter" choice="multiple">
    <Choice value="domestic_sound" />
    <Choice value="speech" />
  </Choices>


    <View visibleWhen="choice-selected" whenTagName="ontology" whenChoiceValue="domestic_sound">
       <Header value="Select a Choice below for domestic_sound"/>
        <Choices name="domestic_sound_choice" toName="audio" showInLine="true" hotkey="ctrl+enter" choice="multiple" required="true"> 
        <Choice value="CLICKING" />
        <Choice value="WOOD" />
        <Choice value="FRYING" />
        <Choice value="SHUFFLING_CARDS" />
        </Choices>
    </View>

This is the template for conditional classification.

I want to make the sub-classes mandatory if and only if the corresponding choice is selected in main labels.

main labels are below:

<Choices name="**main_choices**" toName="audio" zoom="true" showInLine="true" hotkey="ctrl+enter" choice="multiple">
    <Choice value="domestic_sound" />
    <Choice value="speech" />
  </Choices>

So, If I select domestic_sound in the above choices, then only sub-choices under domestic_sound should be mandatory.

When I am adding required=" true" in the domestic_sound choices, It mandates the choices under domestic_sound without even selecting it in the main labels.

Can anyone please help me to get this functionality or behavior? Thanks!

[iqbalfarz]

Hi @makseq, It’s working in the latest version of LS. Thanks!

[makseq]

You can try to do it using SDK: https://labelstud.io/guide/sdk.html#Import-tasks-with-the-Label-Studio-Python-SDK