1.1 Group Single Units

When bandits group together, they are still single units. They are just a stack of single units.

No the only way to get a group is to train it. You cannot group your units together (into a party etc). You can move units together as an army on the map. This does not require a tech. To do so, shift + left click on the unit portraits (they will light) and then move them as normal. Alternatively you can select the tile the stack is on and then execute a move (everyone will move together).

Ya, you would not want this to be possible. Imagine if the AI could turn all of their lowlife troops into giant armies as soon as they had researched it. I would go play a different game if I wanted to fight against a zergrush.

It is true that it makes very little sense that when an army loses a unit, it is that way forever.  Guess it is impossible to train replacements.  You have to  scrap the whole group and start over.

The groups are really just units.  I see no need.  They only behave differently when they get damaged.  Otherwise they are identical.

I think if you have a group, as in a squad of units, I thought they got back lost members if resting in a town?

I think it's silly that you can't group them together. It'd help out a lot -- for one thing, there'd be fewer units on the map after it had been researched. For another, it makes sense. It violates the POLA to not have them able to form a group. Plus, it'd help the AI. 

So I'm in favor, just make it require that troops be in a city with a command post to group them.

Yeah i always disband lower armies and make new grouped ones.  Not letting us regroup units is like making us manually upgrade each house after a new house tech.  They don't do one, why the other?

The concept of armies in Elemental is the only thing that spoils the game for me.  it is a concept that come from galciv where it works very well, as for ships (small, medium, huge) it makes sense, but has no place in the medieval word...   ...a group of 3 units being 10x stronger than 3 units with the same equipement is absurd. The logistic tech should only give a bonus for units of the same type in the same group

Strategically speaking, this is a bad idea.  Think about what happens when you get attacked by 3 dudes.  If you only have 1 stack then all three of those dudes are pounding on your 1 stack and you only get ~3 counterattacks...the other ~6 attacks will go un-counterattacked.  Can't wait to play some of you noobs in the Arena.  hehe.  just kidding.

Unless things have changed, your single units will have a 0% chance to damage a stack of units due to their high armor values.  Though honestly end of semester tests, finals, life means i haven't played much in months so that may have been fixed eons ago.

Well, that does seem to make sense. You may have a point there Istari.

Consider also you're talking about additional drilling in the field, whereas a unit's initial setup is supposed to have taken place using established facilities and instructors. Possible fix is to have a large time cost and some gold cost attached to the proposed tech.

Consider also the fact that the unit design system can create thousands of different combinations. Two soldiers with exactly the same loadout but different hairstyles will be counted as different entities. Any ad hoc fix is going to create a lot of frustration with players who used to like having armies with diverse appearances because they won't be able to retrain the troops they want to have.

I agree. If you have can research a tech that allows you to group singular units by retraining them for gildar/time costs, it would improve game options. If you could also group varying unit types, it would make for interesting stacks, adding a level of depth to combat. However, it would also complicate things, especially if you try to group archers with swordsmen.

Things have changed.  I stack with 15 armor is not treated like a single unit with 15 armor.  It's treated like 3 units with 5 armor.