How can I pass URL parameters to a redirect URL in Webflow? I need to be able to do this on any link on the page, and also include form dropdown selections.

In order to pass URL parameters to a redirect URL in Webflow, you can utilize Webflow's built-in custom code functionality. Here's a step-by-step guide on how to achieve this:

1. First, create a custom code embed on your page. To do this, select the page you want to work on in the Webflow Designer, and then go to the "Page Settings" panel on the right-hand side.

2. Within the "Page Settings" panel, scroll down to the "Custom Code" section. Click the "Add Custom Code" button.

3. In the custom code embed, you will need to add JavaScript code that captures the form dropdown selections and appends them as URL parameters. You can use JavaScript's `querySelector` method to select the dropdown element(s) and retrieve their values. Then, you can use the `window.location.href` property to redirect the user to the desired URL with the appended parameters.

Here's an example code snippet that demonstrates this process:

```javascript

```

In the code above, make sure to replace `#your-dropdown-selector` with the appropriate selector for your dropdown element.

4. Once you have added the custom code to your page, don't forget to publish your site for the changes to take effect.

With this implementation, whenever a user selects an option from the dropdown and triggers the change event, the JavaScript code will capture the selected value, construct a redirect URL with the appended URL parameter, and then redirect the user to that URL.

Please note that this approach assumes you have basic knowledge of HTML, CSS, and JavaScript. If you're not comfortable with coding yourself, you can consider reaching out to a Webflow expert or developer who can assist you in implementing this functionality on your site.