Saving Data associated has Many

Hi I have 2 table, a Ticket table and a comments table.
In ticketsTable.php

 $this->hasMany('Comments', [
            'foreignKey' => 'ticket_id'
        ]);

and in commentsTable.php

$this->belongsTo('Tickets', [
            'foreignKey' => 'comment_id',
        ]);
    }

When I read the data, all is fine, e.g in edit function.
I can run with foreach over all comments and show them.
$ticket = $this->Tickets->get($id, contain: [‘Comments’]);

foreach($comments as $entity)
 {
      echo h($entity->created->nice());
       echo $this->Text->autoParagraph(h($entity->comment));

 }

But how to add a new Comment in a form and save it?

Thats Another form for comments to create you just make sure that you select the ticket id from cooment form