Shadowmeld all the time

How would i make Shadowmeld work at day too? I cant find anything to change, except "Day/Night Duration" but i dont know if it has any influence on when Shadowmeld works?

I don't really know how, but one thing i can tell you, you can hit anyone who suggests using permanent invisibility.

Well, i need it for a special map, where bein invisible is the whole idea. Of course you cant move or attack while you use it

You can use that invisibility of that Draenei hero. He stays invisible when he doesn't walk. Put a trigger in when he walks he losses the ability and when he stops he gets the ability again, by using an instant Shadow meld like that guy has it should work well enough... I think.

That ability for invisibility is Permanent Invisibility.

Don't listen to Cyborg dragon and don't hit me.
Use the permanent invisibility.
Of course, that's not the whole thing, you should have a trigger that takes the ability away when the unit moves and gives it back when it stops moving. That is, if you want your unit to be invisible all the time it is not moving.
Alternatively, you could make the unit invisible only when a special spell is casts, when the unit casts it, invisibility(sorceress) is cast onto the unit with the use of dummy casters that has infinite duration, and then, when the unit is given another order, the buff is removed.