Many thanks for your help. In this project, I need to install some other extensions like community builder and they will be displayed into maincontent.
The way I found to display them is through the template T4 Template Blank.
I believe I can create styles for my pages with maincontent generated by extension to add a layout with more module position and use T4 builder in order to create beautiful pages. Is it a right method ?
Does JA builder handle the maincontent and could be a better choice in this case ?
Thx in advance for your help.
Regards,