I flashed my Sonoff Basic with the latest firmware Tasmota.
The Timer settings in the firmware is something I use a lot, and would like to be able to change the settings from within Hass.io. (buttons / sliders etc)
I tried to find information how to do this, but came up with nothing…
Hopefully someone here is able to help 
I’m not sure what you want to accomplish. You can install the tasmota admin addon and add it to your panel iframe yaml?