sliding door stopping half way or 3/4 way

Ok I am trying to make a door that slides up and what i want it to do is to stop 1/2 way or 3/4 way to give it the effect that its broken.... but when I apply the func_door and set it to slide up it seems that it wants to move up the entire height of the brush... Is there any way to make the door stop half way through?

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<DIV class=quotetitle>? quoting LIVEWIRE898</DIV>
<DIV class=quotetext>Ok I am trying to make a door that slides up and what i want it to do is to stop 1/2 way or 3/4 way to give it the effect that its broken.... but when I apply the func_door and set it to slide up it seems that it wants to move up the entire height of the brush... Is there any way to make the door stop half way through?</DIV></DIV>

assuming its still like HL1, set the "lip" for a different value..

may be more, or less i suppose, depending on the direction of travel.
try decreasing it by 100