JUST AN FYI taken from the Keyboard Central Forum Heads up:
To create your own splits and layers, or modify anything beyond the limited effects and parameters burned into each patch, Keyscape requires Omnisphere 2.
This isn't mentioned on the product page at Spectrasonics' site - only in the FAQs.
The product page does mention Omnisphere integration, but doesn't say it's required for Keyscape editing. At least for me, this is a serious limitation and should be made clear on the product page.
I have Trilian, Omnisphere 1, and Stylus RMX, and none of them depends on another plugin for editing. So I never thought to check the FAQs.
I didn't discover this till after installing Keyscape, so it felt like a "gotcha". Not cool, Spectrasonics.
Since Omnisphere 1 is more than adequate for my needs, I have no need to upgrade to v2; so even the $199 VIP upgrade is steep just to be able to edit Keyscape.
If I had known this, I would have passed on Keyscape.
YMMV, of course.