I am new to DirectAdmin coming from cPanel. Is their away in DirectAdmin making changes to PHP Settings and adding / removing PHP Modules through the GUI like cPanel instead of having to modify php.ini file through command line
You can access file editor from System Info & Files by clicking "File editor" link.
From there you will see list of system files you can edit. Click on desired file name to view it. From there you will see contents of file and will be able to modify it. Don't forget to click "Save" button after making any changes.