Help with trigger

[Sonic]

• Events
  • Unit - A unit Is attacked
  • Conditions
    • (Level of Knockback for (Attacking unit)) Greater than (>) 0
    • (Random integer number between 1 and 100) Less than or equal to (<=) (4 + (3 x (Level of Knockback for (Attacking unit))))
  • Actions
    • Set TempUnit = (Attacking unit)
    • Set Camera_Hide = (Unit-type of TempUnit)
    • Set TempUnit = (Attacking unit)
    • Set TempUnit2 = (Attacked unit)
    • Set TempLoc = (Position of TempUnit)
    • Set TempLoc2 = (Position of TempUnit2)
      • Multiple FunctionsIf (All Conditions are True) then do (Then Actions) else do (Else Actions)
        • If - Conditions
          • (TempUnit2 is alive) Equal to (==) True
        • Then - Actions
          • Special Effect - Create a special effect at TempLoc using Abilities\Spells\Items\AIil\AIilTarget.mdl
          • Special Effect - Destroy (Last created special effect)
          • Wait 0.10 seconds
          • Unit - Hide TempUnit
          • Wait 1.00 seconds
          • Unit - Unhide TempUnit
          • Selection - Select (Attacking unit) for (Owner of TempUnit)
          • Special Effect - Create a special effect attached to the chest of TempUnit using Abilities\Spells\NightElf\BattleRoar\RoarCaster.mdl
          • Special Effect - Destroy (Last created special effect)
          • Unit - Move (Triggering unit) instantly to (Position of (Attacked unit))
          • Set Damage_FORMULA = ((Real((Strength of TempUnit (Include bonuses)))) x 0.50)
          • Unit - Cause (Attacking unit) to damage (Triggering unit), dealing Damage_FORMULA damage of attack type Spells and damage type Universal
          • Animation - Play TempUnit's Attack Slam animation
          • Unit - Cause TempUnit to damage TempUnit2, dealing (50.00 + (50.00 x (Real((Level of Knockback for TempUnit))))) damage of attack type Hero and damage type Universal
          • Set KnockbackCall_Unit = TempUnit2
          • Set KnockbackCall_Dur = 1.00
          • Set KnockbackCall_Dist = 400.00
          • Set KnockbackCall_Angle = (Angle from TempLoc to TempLoc2)
          • Set KnockbackCall_SFX = Abilities\Spells\Other\Stampede\StampedeMissileDeath.mdl
          • Set KnockbackCall_DestroyTree = True
          • Trigger - Run Knocback Call <gen> (ignoring conditions)
        • Else - Actions

When the unit is becomes unhidden it selects the unit , but I want to select unit if the player was selected the unit before it hides,is it possible, IF I was selected before it will select, and If I was controling another unit it doesn't select
+rep!

 

[BRUTAL]

make a trigger like
event- player 1 selects a unit
actions- set SelectedUnit = TriggeringUnit

then in your spell put an if/then like
if SelectedUnit equal to CastingUnit
then select new unit blah