in other words, is it possible to load more than 1 module at the same time?
for exemple, when I display a node, ezPublish invokes the module /content/view/full/[id_node] I would like to show the result of another module when display that node...
in other words, is it possible to load more than 1 module at the same time?
Not directly. However there are few possibilities to get that data.
1. Template operator/fetch function + custom tag. First one can fetch data, second can display it in the center column if you are using a eZXML block
2. custom tag only. Here you can use either iframe or do AJAX call to get data 3. Skip custom tag and put code directly in the template responsible for displaying frontpage.