Does not appear in the gui

I am a new to lede and have a few questions. I installed openvpn and ad blocker and it does not show up in the gui.
How do I have it to appear.

Any help or suggestions is greatly appreciated.

No all packages have corresponding LuCI pages, and must be configured by editing their configuration files; some packages do have LuCI pages, but are on a separate package. For OpenVPN, you have to install "luci-app-openvpn"; for adblock, you have to install "luci-app-adblock".