Say I have a select field, but want to use a callback function to fill the options.
The data are stored in a cloneable group in another custom field.
I do not need any live changes; getting the select-data (callback) only on page load is okay.
There are different support posts, explaining that it is not intended or that a certain order needs to be incorporated.
So, please, can you provide one or two examples of how to achieve such a callback function on a select field coming from another cloeanable group field?
Thanks.