Please follow the instruction below to create a language picker in your form;
1 - Create language table in the database tab.
2 - Create a langCode column in the table. This is must.
3 - Prepare the content for management and showing. Please keep in mind that the langCode in your showing content has to be set in ID. The language picker needs this field like 'en,fr,it' etc.
4 - Drag a comboBox and drop to your form.
5 - Open the connection tab for the combo box and set the options for table and claim data
6 - Set the "aigap_framework_dev_panel_language_picker" to the prmInput if you want to change the language