In various blog posts, we can find information about suppressing the display of Apply buttons on multiple dashboard prompts, and replacing them with a single Apply button.  This method has worked well in earlier releases of OBIEE.

As taken from those blogs, the method for suppressing the Apply buttons is this:

1. Create a new section at the top of the dashboard page;

2. Set the css for that section to display:none, which will make the section invisible;

3. Create a text object in that section with these contents:  <style type="text/css">.PromptViewCell .button{display:none}</style>

4. Tick the 'Contains HTML Markup' checkbox;

5. Save and run the dashboard.

In OAC version 12.2.5.1.0, that process does not hide the Apply buttons.  Has there been a product change that would prevent this from working?  (I have tried this in both Firefox and Chrome.)  A Google search reveals no hits on the string ".PromptViewCell", other than for the hits pertaining to this topic in OBIEE, so it appears to me that perhaps the .PromptViewCell is a special css tag in OBIEE that has not been brought forward into the version of OAC that I am working with.

Have you been able to implement this workaround in OAC 12.2.5.1.0?