Is there functionality to require a field only if a specific value is selected from another field?

Hi,

I have a field called "Decision", where the dropdown selections are either Approve or Decline.  I am looking for a way to configure the system where if the user selects Decline, the text box field beside it must be populated.  If the user selects Approve, __I would l like to have the text box field optional.

Currently, I've just left the text box as required and told any user that selects Approve to just write "N/A".

Is there any way I can configure it in this manner in QuickBase?

Thanks!
- Sam