add new fields in shortcode

Hello!

I want to add new fields by using a shortcode.

I added shortcode support to cf7 – this works fine – my shortcode displays text.
But when I try to return a new field (e.g. [text* your-name]), I just see the text [text* your-name] in the form, not the edit field.

Is there a kind of re-render or re-init hook/function I can call in my shortcode function, so that the new field is displayed?

Thanks
Digo