(If you need an answer from our support staff quickly, don't post in architecture as it's seen as a lower priority forum).
Dependency from entity onto table, you mean? What dependency are you looking for exactly? For example, if you have 400 tables / views and 30 entities mapped onto them, there are a lot of tables/views which aren't mapped and therefore the application doesn't depend on them, is this what you're after?
This is easy to generate from a template into whatever output you want. Using a .lpt template you can traverse the EntityDefinition instances in the project object and emit to the output the target they're mapped on. This gives you a list of targets the project depends on. This can be done statically, on the command line using the command line generator. See the SDK for details about writing templates. Of cource you can also do this in a plugin (as it also has access to the entire object graph) and for example export it to excel in your plugin by opening a form and bind it to a grid which supports exporting to Excel. In v3, this is build into the designer, you can then query the project using any query you want (using Linq, inside the designer) and export the output to excel or other formats.