I don’t even know how to explain, so it’s better by example:

-dana model game and model screenshots: the form is filled in this way

<?= $form->field($model, 'game_name')->textInput()->label('Название') ?> <?= $form->field($screenshot, 'screensh_path')->textInput()->label('Скриншот') ?>

and how can I fill in the Screenshots model, let's say two times

  <?= $form->field($model, 'game_name')->textInput()->label('Название') ?> <?= $form->field($screenshot, 'screensh_path')->textInput()->label('Скриншот1') ?> <?= $form->field($screenshot, 'screensh_path')->textInput()->label('Скриншот2') ?>

0