Do all dwarves automaticly change their equipment if there is better one available? For example a dwarf wielding bronze pickaxe will automaticly swap it to steel pickaxe if there is one available? If no, how can I do it?
To be sure I'll ask - if my dwarfs have "no scheduled order" in some month, they will be doing their stuff or still sit in barracks or train?
Also, I still see only one dwarf training and the others sitting in barracks. At least their happiness changed xD
Last question, because wiki didn't anwser me
How do I get rid of flies or stop them from spawning in my meeting hall (on food stores)
I guess caging goblins and letting your soldiers train on them (by releasing them from cages or so) will work way better than letting your soldiers train on archery targets? xD
In the (m)ilitary screen, under (e)quip, there is an option to set the (P)riorities for squad equipment. Generally fortress guard, then militia commander's squad, then the other squads in descending order pick their equipment. You can change that - for example, if you guard squad are all marksdwarves because beating criminals with wooden crossbows hurts less, they will pick the best armour, and you don't need your marksdwarves to have all the best steel boots and gauntlets. It seems to me that all dwarves are constantly trying to pick up the best equipment they are allowed, so if you are working on steel stuff for them, the squad with the best priority will pick up the new pieces as they are made, the next member of the squad picking up what they dropped, so on down the list of squads so your last recruit in your last squad is wearing a copper mail shirt, a silk thong and nothing else until goblin christmas comes along. For miners it doesn't matter what their pick is made of, and I have never noticed them switching.
Dwarves with no scheduled order will train sometimes and do their civilian labors sometimes. I remember seeing somewhere that when they are skilled enough dwarves will stop doing civilian labors and just train all the time, but I have nothing to back that up.
If only one dwarf is training, check the (s)chedule screen, (e)dit orders, and use -/+ to adjust the number of squad members training at any one time. Active dwarves will also walk around filling their backpacks, filling waterskins, picking up equipment and sleeping, so you may have to check on each one individually to see what their up to. If you are (v)iewing a dwarf and it says 'Soldier (cannot follow orders)' where it usually says a dwarf's current labor, there is an issue with alerts, schedules, orders or barracks. Often happens with marksdwarf squads if they don't have an armor stand, weapon rack or cabinet designated as a barracks.
No idea how to get rid of flies. I have noticed that having lots of cats tend to reduce the amount of flies I have indoors, so it may be that flies are attracted by vermin. You can't see vermin but they do have an effect which is why risking a catsplosion is usually a good idea.
Marksdwarves train way faster shooting live targets than archery targets. It can be difficult to manage their ammunition, and if half of the squad is out of ammo and you order them to kill a target, the ammo-less squad members will try to path to the goblins to bash them with the butts of the xbows. You can build a pit with no way out surrounded by fortifications and pit the gobs into it.