First things first, units utilizing the
Dimensional Translocation ability are not in Strategic Reserves. They are in a
hyperspace location. Units in such locations are Reinforcement Units.
Rules Term Glossary wrote:Reinforcement unit: Any unit that starts the battle in a location other than on the battlefield, and is not embarked within a TRANSPORT unit that does start the battle on the battlefield, is considered to be a Reinforcement unit. Any Reinforcement units that have not been set up on the battlefield by the end of the battle count as destroyed.
Secondly, most mission packs place a limit on the units that can be in Strategic Reserves and/or as Reinforcement Units.
Now on to your questions:
1) Yes. You can place any unit you want to into Strategic Reserves as long as you follow the rules for the mission pack when doing so.
Prismatic Dimensional Breach allows an alternative deployment method to units you place in Strategic Reserves, but the normal rules still apply.
2) Yes. There are no rolls to bring on Strategic Reserves or Reinforcement Units in the Arks of Omen Mission Pack. Note that in AoO, you are only allowed to bring in such units on the Second and Third Battle Rounds as you are not allowed to bring them in on the First Battle Round and they are considered destroyed if they do not arrive by the end of the Third Battle Round
3) I don't know. Any questions?