1. Can objects like fire be used to injure player, like in dev made mission?
2. Can a NPc ( contact) be set to follow you?
3. can a contact help you in battle?
4. Can we make the new chat boxes, that don't need interaction
5. Can you reduce or disable boff's, don't need on present mission
But will for holodeck series.
6. Can we do player costumes like in devidian mission where
You looked like d7 battle cruiser, or where Qball morfed ya?
Can a object be set (say a shuttle) to visible when previou shuttle go's hidden,
Or do a need separate trigger for each shuttle? Mission I'm working on needs to have a shuttle to take off and fly away.
I would say that the answers to all your questions would be: No, not yet, maybe not ever who knows. Except maybe question 4 regarding chat boxes... why could you not add a dialogue box anywhere? without interaction? do you mean the text from someone just shows on the screen like in the new episodes? then, No... we can't do that either...
Can a contact help you in battle? Possibly, but it involves using a work around technique that might not suit your purposes and very likely is not what you want.
In my opinion... you could use a normal pop-up box to convey what's happening in space with no real troubles, but you'll need to hit continue or whatever you put in that button window. You should consider using whatever work around you need to use to make things "appear" to happen in the story even though you don't see them.
It is a common tool to get the results you require.. for example in TOS with the Gorn... we never saw any other Gorn, but we believed they were up in the hills attacking because Spock said they were and some special effect flash pots went off. We believed there was a whole Gorn race with space ships because they simply said they existed. We only saw one Gorn in a rubber suit. Using dialogue to make the player believe something is a useful work-around for things we cannot actually do in the Foundry.
If a fight breaks out among my crew, I don't want to kill them, so I use a dialogue box that says "set phasers to heavy stun" and then proceed to eliminate a bunch of mirror universe enemies.
You need to get creative with the tools to get the results you desire. if a function becomes available later you can go back and do it the way you wanted to, but keep you work going anyway you can.
I used a shuttle in my mission by having a dialogue that read "landing party standing by in shuttlebay 2" and then on the ground the shuttle is right there... like wise after completing my objectives I added an objective to return to the shuttle and a dialogue that says "standing by for emergency shuttle recovery" or some such nonsense.
As far as a contact helping you in battle you can beam in allies at a certain point and use a dialogue box to appear to talk to them. You can eliminate "extra allies" by leaving them off the map edges or a few other ways. Get creative with the tools you have.
You can bury objects under the ground to use as hidden objectives to make things work. There are many "work-arounds" that are available in tutorials at StarbaseUGC.com that can help you with some of these. Of course as we get new features added some of these work-arounds are no longer necessary to use and that's a good thing.
Some of the work-arounds can have detrimental consequences that you may not realize, case in point is the BOff eliminating work-around that has you spawn in a corner and your BOff's fall to their deaths leaving you alone in your mission. If a team of players tries your mission then you just wiped out the rest of the team players.
Anyway I hope this gives you some inspiration to try to think outside the box and get the mission elements that you need.