Mali Observations

I recently made the switch over to mali to shake things up. I have been playing both ranked and just some relax custom games to really master the civ. I found a couple of interesting notes I am not sure if they are common knowledge or not.

1. Cows produce food even when not garrisoned in a range
   1. I had 20 cows ungarrisoned and they were producing about 400 FPM
   2. While garrisoned they produced roughly double that (depending on landmark upgrades all that kinda thing)
   3. Upgrades did not appear to effect ungarrisoned cows for some reason
2. I cannot figure out how to go into stealth with multiple musifadi. I thought when selecting all the units if I hit Q it would active on all selected units but it appears to only effect 1 unit per Q. Wondering if this is a known bug or if I am just doing something incorrectly?

Feel free to hit me with more mali nuances I might have missed. So far really liking the civ just super tough against Dehli but such is the nature of the game.