Spiked barricades on some custom models?

Hello, i would like to know how to make it so spiked barricades can appear out of some custom model buildings because on my goblin map buildings such as "Goblin Altar" and "Goblin Town Hall" are unaffected by the Spiked barricades upgrade although buildings such as "Sheep processor" are where the spikes actually do come out of the side, so could somebody please tell me how to make it so all of my buildings generate the spikes when upgraded?, thankyou.

If you're using imported models, do they have the attachment point that you're trying to attach the spikes to?

Ofcourse not..... what an idiot i have been...but i don't know how to place them on?

You need a model editor (don't look at me) or someone with Magos or something.

I'm not good with attachment points, ask a modeler or something to do it for you.

Thankyou, any ideas who? or any volounteers??

Try the Artist's Discussion and Queries forum.