Create settings field on button click

currently I facing the problem how to add an option field or setting dynamical with a button click.
There are a few similar questions in other boards but no one helped me respectively many where not answered.

So I hope that I can give you all the informations you need to give me a hint what I can do.

My idea was to create a section like here:

`function initialise_content_options(){

add_settings_section(
‘content_design_section’,
‘Content design options’,
‘content_design_callback’,
‘theoretisch_staticPage_options&tab=content_options’
);

if (!isset($_POST[“add_or_delete”])) {
$numberOfSections = 1;
}else{
$numberOfSections = $_POST[“add_or_delete”];
}

for ($i = 0; $i < $numberOfSections; $i++) {
// here I create a section with many fields`

with a loop which creates the other sections dynamical.

In the section above (content_design_section) I print a description and an add button. So if the user clicks on that button I increase the value of a hidden field (with the name add_or_delete) with javascript. Then I read the value of the hidden field with $_POST["add_or_delete"] and create the number of sections with its fields in the loop. This is inside the loop:

`$option_name = ‘content_options_group’.$numberOfSections;

// fetch existing options
$option_values = get_option($option_name);

// is called to automate saving the values of the fields
register_setting(
‘content_section’,
$option_name
);

$default_values = array(
‘topic’ => ”,
‘description’ => ”,
‘picUpload’ => ”
);

// parse option value into predefined keys
$data = shortcode_atts($default_values,$option_values);

add_settings_section(
‘section_design_section_’ . $numberOfSections,
‘Section ‘ . $numberOfSections,
‘section_design_callback’,
‘theoretisch_staticPage_options&tab=content_options’
);

add_settings_field(
‘topic’,
‘Topic’,
‘topic_callback’,
‘theoretisch_staticPage_options&tab=content_options’,
‘section_design_section_’ . $numberOfSections,
array(
‘name’ => ‘topic’,
‘value’ => esc_attr($data[‘topic’]),
‘option_name’ => $option_name
)
); // and some more fields`

So this is my approach, but it doesn’t work. I think it is because the php is not executed again when I press the add Button.
So do I only have to reload my site, or is it possible without reload?

Each section has a delete link too. If that link is clicked the section of this link should be deleted. This currently doesn’t work either, but I think the problem is the same like with the add button.

If you need more informations please write it in the comments I will add it then.
Thank you!