“Modding is the ultimate form of Cheating” and I made a video that will come out after Fam is done completing OpenMW. Parts of this overlaps with what was done in this guide.
For starters let’s make an Elixir that recovers everything.

Now locate the left-most urn after going down from the Silt Strider in Balmora.

Then edit that record to have that new item.

And let’s also make a Cheater’s Amulet with the same effect but constant (every second).

Now we need to clone Fargoth or any other NPC.

Then edit his/her dialog. (Topic and Topic Info)

In the scripts you can use console commands. See which are available in this list and learn more from this tutorial.

Now View the Cell and drag-and-drop the NPC on it.

Add metadata and the addon before playing.

Try it out by putting this file in ~/.var/app/org.openmw.OpenMW/data/openmw/data/