Why my Map list is getting reset when I run the GSmanager? How to handle this?
This is likely because you have activated (and not configured) the plugin mapcycle which overwrites your maplist settings made at your hosting provider.
You can change this in configs/plugins/mapcycle.json, set enabled to false. Our documentation may help you with configuring the rest of GSManager.
You are also free to ask questions in this forum or search through it, as it has all questions asked since 2008.
HOW TO ACCESS A LOCAL INTERFACE TO ENABLE OR DISABLE PLUGINS OR TO ADD USERS? I WANTED TO FORCE MY SERVER PROVIDER TO USE THIS, FIRST I HAVE TO TEST.
First, please don't use capslock - it's not nice. Second, there is no local interface for this job. If you do not get GSManager by a licensed server provider, you can use it free of charge but it's intended to be used by experienced users, as installation and configuring needs experience.
Also, you can't force your server provider to use it, as he will need a license to do so. GSManager for frostbite games for server providers is not free of charge. You can get a GSManager Instance with access to the webinterface at http://gamed.de, this will work with a gameserver from other companies, too.
You can configure permissions by editing groups.json and you can add users by configuring users.json. This script is written in PHP, a script language for support of all operating systems and for running on dedicated servers. It's not intended to be like Procon as it would not work on every server then.
Since creation of this tool it was aimed to people that have experience or have fun to get some, if you search something that is really easy to click-configure ProCon better suits your needs. If you search something powerful but in need of some work to configure, GSManager is right for you. If you want it to be mixed, you need GSManager from a licensed server-provider as these have access to the webinterface that makes configuring easier. There is also no such thing as a Layer and a Client. GSManager is a layer or better called a daemon by itself. It is made to be configured once, put on a dedicated server and running infiniteley for automation and in-game administration. So, as you see, there are some differences between ProCon and GSManager.