php function idea

Hi, we have an education site and the editors must select the option “php_function” with several functions we have created, so they must remember the names of these functions, and can have mistakes.

Is it possible to add a filter to preselect the allowed function names? So that returning an array of names will display a drop-down instead of a text box. If the array is empty then the text box is displayed.

I would also like to be able to translate the plugin, please tell us if we can collaborate with spanish translation

Thank you very much and greetings