Is there any chance to freeze or disconnect asset with instances? cuz really hard to keep a lot of procedural assets in one scene for memory. I want to keep all my scatter and instances into scene without assets, is it possible? for simple objects with asset i just freeze it and unparent, and it works, but for instancer it doesnt

I looked into this for a bit. It looks like disconnecting doesn't preserve the instances because Maya's instancer node doesn't cache the input connection's data. So a workaround might be output particles, instead of instances:
1. In the asset, output the instances as simple points, with the necessary instance attributes
2. Load the particles in Maya, and cache the particles with a Maya cache
3. Load the cache into a separate particle
4. Manually setup a Maya instancer to use the cached particles
This would completely separate the Houdini asset from the Maya instancer.

thanx, ill try this, but is there any way to use all attributes as quick as i do it with houdini asset? i know only one way, i have to connect each attribute in Per Particle Attributes parameters

When you're outputting particles, all the per-point attributes should be available on the nParticle node. You shouldn't have to connect/create any attributes yourself. After caching, when you import the cache, I believe Maya will setup the per-particle attributes too. The only manual work might be hooking up the per-particle attributes from the nParticle to the particle instancer. But that shouldn't be too bad.