Is there a simple way to completely disable collision of a static object without messing with any 3rd party programs? I'm trying to use an object (SBluePalaceGate) which is perfect for a spot in my dungeon, but the player needs to be able to walk on top of it and the default collision data won't let them. There's an "invisible block" on top of the object which makes it higher than it looks. I was thinking that the best way to fix this would be disabling the collision of the static and use collision markers instead.

I don't think this can be done in the CK alone.
NifSkope can do this though.

I'm pretty much completely uninitiated with NifSkope, yet I'd be happy to walk you through it. It's that easy.

Yeah, all you need do is delete the collision nodes and it works fine. I had to do this to make an illusory tree stump (don't ask).

Haha I kinda want to ask?

Agreed, deleting collision in NIFscope works great, I've had to do it for some of my scarier spell effects and I've never had it cause any problems.

If you can't use Nifskope, you can place the object at a height where won't hinder the path and then move it via script, to the spot where it will have the correct visuals. This may work and may not work, depending on if the object can be moved at all and if the collision moves with it.

If it work, it may be needed to move it to the former possition once the player leaves the cell, in order to do this again.

You shouldn't need to actually delete the collison... just uncheck the Enable Collision flag in BSXFlags (in NifSkope).