Hello again, fellow mappers!
I didn't want to ask once again for help like if I didn't try anything by myself.
But honestly, I tried, failed, searched, read, tried, failed and I've just given up how to set the entities together.
Long time ago, I asked this question in chatbear and someone posted a set of multi_manager, func_illusionary, multisource (?) and some other things.
There's two brushes inside each other, one that is func_illusionary and one that is solid.
When I touch the brush, the solid disappear for 1-2 seconds and re-appear.
Hence I will fall through the brush with func_illusionary, if I don't quickly jump to the next.
How can I make one like this?