@rmcf1902bg
Install the plugin for the first time from Telnet with this command ...
opkg update
opkg install wget
wget https://raw.githubusercontent.com/fairbird/KeyAdder/main/installer.sh -O - | /bin/sh
After that, you can update the plugin directly from the plugin itself by clicking on menu, or a notification will appear that there is a new update.
Command to delete plugin from telnet
rm -r /usr/lib/enigma2/python/Plugins/Extensions/KeyAdder