Seems to me that this line, from the "Class" section of the pinned Documentation thread, would be the one that you would want to test:

addunitrec "monster name" <chance> <nbr> <gold> <gold die> <iron>

Alas, no, addunitrec is an old command, unchanged from CoE3, as far as I can tell, which simply adds the named monster to the recruitment list of the class.

I agree that the class list of commands is where this ability reasonably should be found, though. Although it is shown as a monster (/unit/creature) property, with its own nifty icon in CoE4, it only seems to work as long as that monster is controlled by the appropriate class. (That icon seems to disappear otherwise.) A command for it just doesn't seem to be there (yet?), unfortunately.

By the way, I was about to say this is an ability new to CoE4, but then realized this isn't entirely true. Cardinals and the Pontiff granted a Voice of El the option to recruit templars already in CoE3 – though, oddly, those clerics still haven't for some reason got the nifty new ability icon in CoE4.

Originally posted by DasaKamov:

Seems to me that this line, from the "Class" section of the pinned Documentation thread, would be the one that you would want to test:

addunitrec "monster name" <chance> <nbr> <gold> <gold die> <iron>

Appreciate it, but that works like Marlin described.
I think I'll see if I can circumvent this by making those units a summon for the commander in question for now.

Sorry; my brain short-circuited; Marlin is right. There's a similar command which is the one I was REALLY thinking of ;) :

addmercrec "monster name" <chance> <nbr> <gold> <gold die> <iron>

This seems like it SHOULD allow the commander with the above line to "unlock" the chance that certain units of "monster name" type occasionally make themselves available for hire (based on "chance" percentage per turn).

addmercrec is really the same thing as addunitrec, except only that the recruitment offer will show up in green and be available only once.

However, it seems that Johan may have been watching this thread. In any case, there is now (in v4.11) a way to do this:The monster (/unit) type named with the second command, reclimiter, will get the nifty new purple standard icon.

If the '+' is changed to a '-', the reclimiter command will instead cause the recruitment offer to be available only if the named unit type is not present. (This could for instance be used to make offers of a new Baron, with addcomrec, appear for a Baron faction that lost its Baron.) If it's changed to a '=', it will make the offer work like the "recruitment" of dwarfs, i.e. it will be an upgrade of existing units rather than recruitment of new ones.

Well that's certainly going to be coming in handy.
Thanks, devs!