where to change internal http server port ip

Howto change the default internal ip ( localhost) port (63342)

Settings | Build, Execution, Deployment | Debugger --> Built-in server port

https://confluence.jetbrains.com/display/PhpStorm/Using+the+Built-in+Webserver+in+PhpStorm

to use my inplace easyphp server instead

In order to use your own server you have to define Deployment entry, configure it and mark it as Default.

https://confluence.jetbrains.com/display/PhpStorm/Deployments+in+PhpStorm

if i launch in my IDE from the file using icon launcher ; the internal server goes to http://localhost:63342/localweb/d1/d2/file.html 
why i can't have acces from the browser to http://localhost:63342/localweb/d1

???

"icon launcher" as you call it (or "View | Open in Browser") opens current file in browser. Therefore if you are opening "d2/file.html" it will open THAT file and not another one.

-Is there a way to configure phpstrom to show us the content locate inside the directory ?
(in apache  .htaccess  Options -indexes for disable directory listing )

AFAIK not -- it's a SIMPLE built-in server and not full fledged Apache/nginx/IIS/whatever. If you need Apache-level functionality then please use proper Apache web server.

But .. you can always try placing .htaccess file with your setting in your project root -- some of the settings are definitely working.

P.S.
You can always create Feature Request ticket for required functionality on Issue Tracker.