Hello/Hi/Greetings,

I am trying to display the albums menu as a treeview, but I'm new to Piwigo and not sure where to start.  I have tried a couple of addons, but the most likely appear not to be compatible with the current version of Piwigo. Any pointer or better still examples would be much appreciated. The tree could either be built on a manual trigger from admin or when a user logs on (and may be a user refresh too?).

Piwigo 11.3.0
Operating system: Linux
PHP: 5.6.40 (Show info) [2021-02-28 17:06:01]
MySQL: 10.2.34-MariaDB-log-cll-lve [2021-02-28 17:06:01]
Graphics Library: External ImageMagick 6.9.10-68


Piwigo URL: http://www.watershots.co.uk