Trigger an object on map start (MP)?

Been a while since I did anything here.. Anyway, I've taken up HL2DM
mapping again, and instead of using a brushwork elevator I've decided
to try the model version. However, the model elevatordoor.mdl starts
out closed, then changes to the closing animation when I trigger the
button. Setting the default animation to "opening" just makes it loop
that animation. Any ideas as to how to fix this, or if it's even
possible?

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I'm allergic to tequila, it makes me break out in felonies.

forget it, I'll use something else for the door.

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I'm allergic to tequila, it makes me break out in felonies.