Just to clarify: in my fresh installation (latest versions of everything), I had to place the code inside the showForTab function below the line:

$display_condition = new PluginFieldsContainerDisplayCondition();

like this:

...
$display_condition = new PluginFieldsContainerDisplayCondition();

// @akstis-typer code starts here ------
if($item->fields['type'] == "")
{
    $item->fields['type'] = $params['options']['type'];
}
if($item->fields['itilcategories_id'] == "")
{
    $item->fields['itilcategories_id'] = $params['options']['itilcategories_id'];
}
// @akstis-typer code ends here ------

if ($display_condition->computeDisplayContainer($item, $c_id)) {
...

Otherwise, it didn’t work properly in my environment

I've been testing this code and works correctly except for one more issue: When a custom field is shown and you edit another field (e.g. title), the custom field's alignment breaks again. My solution was to add echo "<div class='offset-md-1 col-md-8 col-xxl-6'>"; into the ajax/container.php file, inside the if ($display_condition->computeDisplayContainer($item, $containers_id)) { condition:

$display_condition = new PluginFieldsContainerDisplayCondition();
    if ($display_condition->computeDisplayContainer($item, $containers_id)) {
        $field_options = [
            'label_class' => 'col-lg-3',
            'input_class' => 'col-lg-9',
        ];
        echo "<div class='offset-md-1 col-md-8 col-xxl-6'>";
        PluginFieldsField::showDomContainer(
            $containers_id,
            $item,
            $type,
            $subtype,
            $field_options
        );
        echo "</div>";
    } else {
        echo '';
    }

After the showDomContainer method i close the created div with echo "</div>";

Hi @akstis-typer

can you rebase ?

Hi @akstis-typer

can you rebase ?

Hi, you mean I need to add last changes of original repository? Or something else?
I'm not so good at git so I didn't get it :0

git fetch upstream (github repo)
git pull --rebase upstream main
git push --force 

That should be sufficient.

I think I did it right. The next step is unit tests - how do I make them? Or can I run yours?
I launched php-fixer and php-stan analyzer - this showed me that all is OK

I've done poorly last time and accidentally revert changes in twig files. Now I reverted all back how it should be and removed spaces and new lines I added.

Finally I got it

The next step is unit tests - how do I make them? Or can I run yours?

We currently have no tests on this plugin; but we will work on adding some quickly. For now, you cannot add tests for your changes; we'll ping you.

Until that, we asked feedback from several users to know if their issues are resolved by your changes.

Thanks a lot for your worK.

=

I've been testing this code and works correctly except for one more issue: When a custom field is shown and you edit another field (e.g. title), the custom field's alignment breaks again. My solution was to add echo "<div class='offset-md-1 col-md-8 col-xxl-6'>"; into the ajax/container.php file, inside the if ($display_condition->computeDisplayContainer($item, $containers_id)) { condition:

$display_condition = new PluginFieldsContainerDisplayCondition();
    if ($display_condition->computeDisplayContainer($item, $containers_id)) {
        $field_options = [
            'label_class' => 'col-lg-3',
            'input_class' => 'col-lg-9',
        ];
        echo "<div class='offset-md-1 col-md-8 col-xxl-6'>";
        PluginFieldsField::showDomContainer(
            $containers_id,
            $item,
            $type,
            $subtype,
            $field_options
        );
        echo "</div>";
    } else {
        echo '';
    }

After the showDomContainer method i close the created div with echo "</div>";

I tested it and in my environment it only worked correctly this way.

Thank you very much everyone!