control of movements and skills

I come across two spell ideas for the map i made, but thats one hurdle which i have to cross.I think the solution for this two spells should be the same.
Is there anyway to prevent player from controlling/selecting the units without the change of ownership?

Is there anyway to disable all skills of a hero so that only the movement can controlled.Note that the skills varies for each heroes.The ownership of the heroes must remain.

I think very hard on how to do this using the triggers, but stupid me, I just cannot solve it. Please help me.

u can make the units have the same teamcolour as the player
(if u have tft)

about the movement thingie...
maybe if movement would be with arrow keys and
spells be activated whit hotkeys...

sorry, but what i want is actually the ownership, not the teamcolour.

The teamcolour stuff may actually perform what i want, but since its related to an ultimate spell, i doesn't want the unit/hero kills to belongs to neutral hostile/whatever instead of the actual owner.

I create a trigger-based spell, and it allows control of enemy heroes for a brief amount of time, but I dont want the player to use the spells the hero that was being controlled. In other words, i just want that spell to just control the movement, meaning that heroes can't do anything except walk and stop.