preselect value using URL options

I found this for using textfields : https://contactform7.com/getting-default-values-from-the-context/

However, it does not work on pull-down options. Is this possible?

Where can we see the website in question?

https://acc.kruidenbuurt.nl/contact/

See Editing form template

What content do you have in the Form tab panel?

I get the feeling my question is misunderstood.

Let me refrase using the URL I provided:
I want the selection in field “Categorie” to be choosen using an url ->
https://acc.kruidenbuurt.nl/contact?categorie=overig

This trick works using a textfield howevewer this does not work on selections (pull-down menus). Is this also possible?

Yes, it is possible.

great … bu how?

https://contactform7.com/getting-default-values-from-the-context/
This trick works using a textfield howevewer this does not work on selections (pull-down menus).