Hello @guzel72,
If you want assign a value to a field (fieldname2), based on the value entered through another field (fieldname1), that are not calculated fields, you can insert a “HTML Content” field with the following piece of code as its content:
<script>
jQuery(document).on('change', '[id*="fieldname1_"]', function(){
jQuery('[id*="fieldname2_"]').val(this.value);
});
</script>
If you want to assign a value to a slider field programmatically, please, follow the instructions in the following link:
https://cff.dwbooster.com/documentation#assign-slider-value-programmatically
Best regards.