Dynamic panel help (2 questions)

Hello there. Just getting more into dynamic panels and working to create a dropdown menu with a text field to filter the contents. (help there would be nice too).

I’ve been searching for some time and unable to find more of what I’m looking for.

My questions are:

  1. When I place a dynamic panel on my page, it needs to be high in the layers as there is a dropdown a bit down the page. The dynamic panel covers the dropdown and when I go and preview it won’t let me choose what’s under the dynamic panel. How can I get around this?
  2. How to make a dynamic panel scroll?

Thank you.