Unit move offset without disabling attack?

[vizard10]

I'm planning to make a 'Barrier' , whenever an enemy unit gets in the range '300' of the 'Barrier' , forces the enemy unit to move offset behind with the angle between points from 'Barrier' to matched enemy unit. Units in range of the 'Barrier' gets pushed behind but disabled attack if the unit is ranged.
I need it not to be disabled . . is it possible?

Further information , if possible , hope it is in GUI instead of JASS and the barrier is a unit , which is moving.
Example , Barathrum from dota , i noticed that you can attack during the Charge of Darkness , because Rubick has stolen the spell and able to use Spirit Charge and able to attack during it too. (further information for those who know dota a bit)

 

[kleinerhauck]

If you want to move a unit without stopping it's orders you have to use
call SetUnitX(udg_unit, GetLocationX(udg_Point))
call SetUnitY(udg_unit, GetLocationY(udg_Point))

as custom scripts where unit is your unit and Point and the target point (case-sensitive).