APK Android VPN Local Area Network

i have server vpn in my local area network , i want to connect vpn from android to my server by apk , my gateway in network [login to view URL] . I do not want to use the manual method of connect through the settings, and then Add VPN . I want the application to the user for easy connect . ========================================== Required when connecting as follows APK IP Address : [login to view URL] Username : test Password : Test ========================= Image attachment for clarification