Form Designer Enhancements question

I just installed CnPack into XE5.

It has option for "Form Designer Enhancements". When I click it, I get error dialog saying: "Only VCL Embedded Designer Supported"

What does that mean?

I am working in Delphi XE5.2 with everything "embedded" just as it comes from the factory.

I am working on a VCL project, not FMX.

What is this complaining about?

:L This error message is wrong. We means "Embedded Designer NOT supported."

Our Enhancement only can work when Designer is floating, which can be set at IDE's options dialog.

We'll fix this message error in next version.