Does the library currently have a method of "locking" a layout. Ie. preventing the user from moving/docking/floating an anchorable or document?

I noticed a "CanMove" property for LayoutDocuments, but see no matching property for LayoutAnchorables. Additionally, it doesn't appear to be listed on the wiki documentation. What is the purpose of this property? Would this be a good place to start implementing such functionality?

Happy to contribute, but a suggestion up on where to start would be helpful.