Thanks Paul. This is very annoying, to have to create a custom module for each of my hundreds of pages, made all on the same layout : an article with a gallery + a joomla module + a vertical menu .
In my layout, if I make the article (description tab with JCE + gallery) in Easy Image Gallery, the gallery is not full width.
Here is the layout with an independant module pour the gallery made in SP Easy Image Gallery, and a normal Joomla article.
See screenshot in hidden content.
The solution was to make the whole page in SP Easy Image Gallery, with 3 columns in the JCE area,with the module position 1 and the vertical menu each one in a column. The gallery would automatically be full width.
So, I will have to make about 1 hundred of independant gallery modules, if it's not possible to use the position tags in JCE, when its used in SP Easy Image Gallery.