I have a typical install of ISPConfig 3, on Ubuntu 20.04, on my test VPS. Other conf.: Apache, PHP (Fast-CGI or PHP-FPM, all the same can be the same), SuExec enabled. a) How to mount "/var/www/cms/" folder for all clients? b) and how can this be automated? When I create a site 3, 4, 5... for different clients (then I will use an API or script). c) Is it enough to use "PHP open_basedir" (on Panel > Sites > Web Domain > Options page)? THX ALL!