1. Cones are different for every plane and every airline where they are placed.
We already have 3 different variants of cones, we can surely add more (sizes, for example) and they can be tied to the airplane size.
Placement is not something left to improvisation: there are standard placement points, depending on the engine location and wingtips, and GSX already supports this, by placing cones over the wingtips and over the engines. Of course, assuming the airplane configuration is correct to begin with: if you use an unsupported plane, you must first create a configuration for it.
2. wingwalkers needs to be added.
We already have a wingwalker. We'll might add more in future version, of course.
3. loading ( meaning if everything is in the front per the fmc or payload then why does it bring bags to the back instead of just leaving it to the front)
GSX doesn't currently have any notion of precise cargo location in the airplane, because the simulator *itself* doesn't have a proper way to recognize them. Loading stations can be configured very differently, and there's no standard: the airplane developer can name a station anyway he wants, and it can represent anything, from a single bag (or person) or a whole cargo section. There's no such thing as a "type" parameter that we could read to know *WHAT* a loading station represent.
4. after unloading and if the plane is going to sit, there should be an option for pulling the equipment back off the plane)
We might consider this, might be useful.
5. it would be cool to see a pop up screen saying if there is any cargo, so it can display cargo boxes or AVI or and special load onto the plane other than bags.
Please clarify.
6. on widebody aircraft why are there no pallets?
Surely there are. Again, if your airplane is not already supported internally, you must create a correct configuration for it, including the kind of pallet used.
7. a little bit more realistic on the pushback(not all pushbacks are going to be perfect)
Please clarify.
8. maybe a failure page where the shear pin snaps or bags got up the ramp late.
Before considering failures, best to have all normal things working right.
9. also you wont have a crew of 5+ guys working on a flight
Please clarify
10. Lavs truck and water truck addon would be cool
Already planned for inclusion, as you can see from the options in the editor.