This members-only tutorial provides the steps to apply jQuery Collapse script to display toggles that collapse other panels automatically when one is opened in Oxygen so that only one remains open at any given time.
Update: Near the end of the tutorial you'll find instructions to add + and - indicators for the closed and open states.
Let's load jQuery Collapse conditionally i.e., only where it is needed.
Install and activate My Custom Functionality plugin.
Connect to your hosting account using a FTP client and navigate to site's
Upload jquery.collapse.js to the plugin’s
plugin.php and add the following inside the
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