Specador has the ability to link with external documentations.

When a project references data from libraries or other projects, you can first generate documentation for those projects/libraries, then specify the external documentation folders in order to link them with the current documentation.

For example, if you use uvm_lib in 10 projects you can first generate the documentation for uvm_lib and then use it as an external documentation folder for all the 10 projects. All references to uvm_lib entities will point to the uvm_lib documentation.