Different upload size limit for felamimail and myDMS

I’m using eGroupWare 1.6 and I want to get some help for a problem that I have. My users are using Felamimail to send attached files and MyDMS to upload some big files on the server. I’m looking for a setting in order to set different upload size for each application, for example 2 M for Felamimail and 100 M for MyDMS.

When I edit the php.ini file in my XAMPP server, both applications have same settings. Also, when editing the .htaccess in EGW home folder, both still having the same limits, too.

Can I use a specific .htaccess file for every application ? If yes, may I have the syntax and the folders location for the .htaccess file ?

Thanks in advance.