The Category metric class has 2 options that seems to be doing nothing. I'm using it wrong?

use \koolreport\dashboard\metrics\Category;
use \koolreport\dashboard\fields\Text;

class ProductTopNCM extends Category
{
    protected function onInit()
    {
        $this->title('Top 5 Products')
            ->helper('Need help!!!') // <-- Does nothing here and gives error if added to any field
            ->type('success')
            ->width(1/3)
            ->lazyLoading(true);
    }
    
    protected function dataSource()
    {
        return $this->dashboard()->getTpNcm();
    }

    protected function fields()
    {
        return [
            $this->group(Text::create('ncm'))
                ->showTop(5)
                ->andShowOthers(),
            $this->count(Text::create('ncm'))
                ->showRawValue(true) // <-- True or False, the value is still shown as percentage
        ];
    }
}

But, besides show the raw value of the fields, I too would like to be able to "format" the content of chart mouseover tooltip, so I can add the details info of each category, that in my case, are too large sentences to be used diretcly on the category field. Is that possible?

The showRawValue to need suffix to work, seems a bug in the code or in the docs, someone is lacking something.

Anyway, I tried to use the suffix idea to show something but didn't know how to reach the row value. Can I refer to another column in the same row?

ie (something like):

$this->count(Text::create('ncm'))
                ->showRawValue(true)
                ->suffix(' - '. $this->row['ncm_descr']->value()) // $this here does not have "row"

If I can't reach the other columns to get their values, them use either suffix or graph tooltip is useless in this case.

What I'm counting there is the just the quantitie of a "product category number", if I could add this "category number" description somewhere, like an extended legend, it would be of great help for users but, if I can't reach other columns, I guess it can't be done.

I'm having 2 difficulties with Category.

1- When formating the Number field it will show right in the list but not in the total above.

2- When applying Filter, the graph is going crazy.

Here we can see 1 and 2 happening:

Code:

class ProductTopNCM extends Category
{
    protected function onInit()
    {
        $this->title(Lang::t('Top 5 NCM Cat.'))
            ->type('success')
            ->width(1/3)
            ->lazyLoading(true);
    }
    
    protected function dataSource()
    {
        return $this->dashboard()->getDataG1()
            ->run()
            ->process(\koolreport\processes\Filter::process([
                ['ncm', '!=', '.0']
            ]));
    }

    protected function fields()
    {
        return [
            $this->group(Text::create('ncm'))->showTop(5)->andShowOthers(),
            $this->sum(Number::create('qtd_ncm'))->showRawValue(true)->suffix('')->decimals(0)->decimalPoint(Lang::t('.'))->thousandSeparator(Lang::t(',')),
        ];
    }
}

Am I using it wrong?