Flightgroups
The ListBox on the left shows every single FG in the mission and is accessible from every FG tab. There is a maximum of 100 FlightGroups allowed in a mission file. Past that results in various corruptions. YOGEME will enforce this limit.
The ListBox gives you the Team Index (as well as the appropriate IFF color), Global Group, Number of Waves x Number of Craft, FG Name and Global Unit. The FG with an asterisk is the player's FG. Simply click on a FG to load that craft's settings.
Craft
The first group includes the craft Name and Cargos. These strings all have a maximum length of 20 that is enforced. For Special Cargo to be activated, either the Random checkbox must be checked or Special Ship# must be non-zero. Special Cargo replaces the normal Cargo for the indicated (or random) craft in the FG. This will also mark the craft as "Special" for use in triggers and goals.The next group has several settings, from ship type, weapons, formation, etc. For the Craft Type, if you wish to use a custom shipilst, say for a conversion mod or you've replaced ship models, you can take the supplied "xwa_shiplist_template.txt" file and remove the "_template" from the name and change the contents as you see fit. YOGEME will automatically detect and attempt to load the non-template file. It is important to note that the number of entries must match the original count and that each line is the form "Full Craft Name,Abbrv". This will not affect in-game content, this is merely display within YOGEME.
IFF will determine which color it appears as in the CMD, while Team determines allegiance and who the ship blongs to. Note that this has little meaning to the AI. If you give an order to attack a ship on the same Team, an AI craft will attack and doesn't care.
For the Player value, use zero for AI controlled. The AI skill value controls how smart the FG is. Veteran is usually a good value for an average ship. Markings will change the highlight markings for craft that support it, which usually means Fighters.
Formations are the layout of the FG. If you know what you want you can select it from the dropdown, or click the button to take you to the Formations Dialog. Leader spacing controls how far out the first craft is from th erest of the group. This is handy for strike groups; since the AI is more likely to attack the closet ship you can have the leader way out in front, leaving the rest of the wave to launch their attack. Likewise, FG Spacing controls how spread out the gorup is. Default value is 2, and I haven't found a consistent unit of measure for this value although it's probably related to ship class.
The Radio is used to detemrine if FlightGroups will listen to orders given by the player and will also give various status messages udring the mission.
The third group is the numbers box. # of Waves is how many times the group will spawn, minimum of 1. If you never want it to show up, use Arr/Dep controls. # of Craft controls how many ships spawn at a single time, maximum of 6 as the formations can begin to corrupt above that.
Global Group allows grouping of multiple FGs for use in goals or triggers. Standard uses are for grouping strike craft, capital ships, mission-critical craft, convoys, etc. You can deal without most of the time, but you may burn all triggers or not have enough if you've got too many FGs separated out. Global Unit is another grouping mechanic, this allow the sharing of FG Numbers. In the image above, C/C Xi are named with numbers individually, although CN/K share the same GU numbering across multiple Flightgroups.
The final group has the Status parameters which lets you disable the hyperdrive, cut shields, or a few other adjustments. Warheads, Beam weapon and Countermeasures are also defined here.
The Explosion time field acts strange, I don't mess with it normally. For Backdrops, the last fields activate and let you choose the image via the index or Backdrops Dialog. The Global Cargo fields are new to XWA, and allow you to define a single cargo string in the Mission tab that can be used across multiple FGs as well.
The last item of note for this tab is the "Flight Group # of #" string which is good for letting you know how close you are to the limit, as well is the "# Craft at 30 Seconds" string. This value will turn red if more than 96 craft will be present at the start of the mission in a single Region or have simple Arrival delays that have the FG showing up within 30 seconds. This is your quick sanity check for the craft limit, it's up to you to ensure that this isn't exceeded for the rest of the mission. Any craft over 96 will not appear, this can break missions when those missing craft are mission-critical for destruction goals and others.
Backdrops
As of v1.4.1, YOGEME supports the application of DTM's Super Backdrops, available at the X-wing Alliance Upgrade Project. In the Tools menu the "Apply Super Backdrops" option will be available if the SBD installation is detected. A region selection dialog will appear, prompting you to select the region that the backdrops will be applied to. The region names will reflect those used in the mission.
Arr/Dep
The Mothership settings should be straight forward, craft will default to Hyperspace. You can select any FG in the mission to be a Mothership, even if they aren't equipped with a hangar. Forgetting to reassign the Mothership's FG can lead to amusing instances of large craft leaving the "hangar" of the first FG, which is usually the player, sending them tumbling, sometimes into tiny pieces.
Player craft must have a Mothership assigned, even if assigned to itself.
FlightGroups will attempt the the first option (Via panel) when the appropriate trigger fires and will go to the Alternate when the primary Mothership is not in theater. If both condtions cannot be met, the FG will hang around either holding still or sometimes flying in a straight line forever, depending on their last order.
The Arrival Delay doesn't have any tricks to it; if there's a trigger set it will delay after that firing, if there's no triggers (both TRUE) it will delay from the mission start. The Departure Delay now works as you would hope, the delay starts after the trigger fires. Also, individual craft will leave when the Abort condition is met, such as "Warheads Depleted" or "50% Hull".
Goals
You also have three strings at your disposal for the in-flight goal list.
Waypoints
The checkboxes control whether or not the WPs are important. If you have multiple Start Points, theroretically it picks one at random (I say this as normally I only notice it using SP1). The Waypoints are used for craft with various "Patrol" or "Circle" orders, best used with capital ships or convoys that can't fly in a straight line. XWA now stores the wapyoints for each order separately, this allows ships to patrol an area for a time, move one and patrol elsewhere. Hyperspace defines where the ship hypes in to and where it heads when it's hyping out. When a craft arrives via hyperspace, it will be oriented such that it will pass through HYP and be pointing towards SP1, even if SP1 isn't checked. This is important, so remember to set SP1 for craft with HYP otherwise you can have collisions when multiple craft hyper in at the same time. Craft leaving have no orientation, then hype out when they hit that point.
The rotation fields with the T/I icons are enabled for all craft in XWA. If you're used to using different editors and adjusting the pitch angle, you know normally the Pitch value is 64 to counter the automatic nose-down that the flight engine automatically adds to all craft. That is the raw value. YOGEME displays this number as corrected degrees, so what you see as 64 in other editors will appears as 0 in YOGEME. Sometimes the conversion from 256 to 360 isn't perfect and it may slip a degree (44° will be 43°, but 45° will always be 45°). YOGEME is aware of that extra 90° and it will be added back into whatever value you choose. (Yes, this means if you put 64 here, the ship will pitch up about 64° instead of being "level").
Orders
Throttle % is just that, a very basic throttle control, while Speed gives you a more precise number suited well for convoy craft of differing ship types. As of 1.4.3, this will be shown in MGLT. The three variables next to it change meaning as you select orders, so pay attention and play with them to get a full understanding.
Targets behave similarly to triggers, using the Type and Variable fields as well as the And/Or controls. FlightGroups will go after Primary targets first, with Secondaries being saved for afterwards or as targets of opportunity. The order text will update to reflect any changes and ensure the result is what you're looking for.
Options
Roles primarily are for message updates, such as "Your Command Ship is under attack!" etc. The Pilot note is primarily for note-keeping, no real affect.
XWA also provides Skip triggers for every order, instead of just Order #4 like in XvT. This also helps with the dynamic capability of the missions.