For 'php selected' (still in progress), you can select php version for each website. So, you can select 'php56m' for website1, 'php55m' for website2 and so on.
Alternatively, for web proxy (like nginx-proxy or hiawatha-proxy; after select 'Enable Multiple PHP As Secondary PHP' under 'webserver configure') you can select php version for each website with add certain parameter in .htaccess file.
In .htaccess under document root of each domain, you can see not for 'select php version':
###Start Kloxo PHP config Area
### begin content - please not remove this line
### MR -- using php version different with default php
### 1. Using suphp
### - Copy between '#<FilesMatch \.php$>' to '#</FilesMatch>' and
### then remove '#' from '#<FilesMatch', '#</FilesMatch>' and one of '#SetHandler'
#<FilesMatch \.php$>
#SetHandler x-httpd-php
#SetHandler x-httpd-php52
#SetHandler x-httpd-php53
#SetHandler x-httpd-php54
#SetHandler x-httpd-php55
#SetHandler x-httpd-php56
#SetHandler x-httpd-php70
#</FilesMatch>
### OR
### 2. Using fcgid
### - Copy from '#Options' to '#FCGIWrapper' and
### then remove '#' for one of '#FCGIWrapper'
#Options +ExecCGI
#<FilesMatch \.php$>
# SetHandler fcgid-script
#</FilesMatch>
#FCGIWrapper /home/kloxo/client/php.fcgi .php
#FCGIWrapper /home/kloxo/client/php52.fcgi .php
#FCGIWrapper /home/kloxo/client/php53.fcgi .php
#FCGIWrapper /home/kloxo/client/php54.fcgi .php
#FCGIWrapper /home/kloxo/client/php55.fcgi .php
#FCGIWrapper /home/kloxo/client/php56.fcgi .php
#FCGIWrapper /home/kloxo/client/php70.fcgi .php
### end content - please not remove this line
###End Kloxo PHP config Area
So, if you want 'php70m' as php version for website, you can add:
<FilesMatch \.php$>
SetHandler fcgid-script
</FilesMatch>
FCGIWrapper /home/kloxo/client/php70.fcgi .php
###Start Kloxo PHP config Area
### begin content - please not remove this line
### MR -- using php version different with default php
### 1. Using suphp
### - Copy between '#<FilesMatch \.php$>' to '#</FilesMatch>' and
### then remove '#' from '#<FilesMatch', '#</FilesMatch>' and one of '#SetHandler'
#<FilesMatch \.php$>
#SetHandler x-httpd-php
#SetHandler x-httpd-php52
#SetHandler x-httpd-php53
#SetHandler x-httpd-php54
#SetHandler x-httpd-php55
#SetHandler x-httpd-php56
#SetHandler x-httpd-php70
#</FilesMatch>
### OR
### 2. Using fcgid
### - Copy from '#Options' to '#FCGIWrapper' and
### then remove '#' for one of '#FCGIWrapper'
#Options +ExecCGI
#<FilesMatch \.php$>
# SetHandler fcgid-script
#</FilesMatch>
#FCGIWrapper /home/kloxo/client/php.fcgi .php
#FCGIWrapper /home/kloxo/client/php52.fcgi .php
#FCGIWrapper /home/kloxo/client/php53.fcgi .php
#FCGIWrapper /home/kloxo/client/php54.fcgi .php
#FCGIWrapper /home/kloxo/client/php55.fcgi .php
#FCGIWrapper /home/kloxo/client/php56.fcgi .php
#FCGIWrapper /home/kloxo/client/php70.fcgi .php
### end content - please not remove this line
###End Kloxo PHP config Area