Show entityid of selected services

[phavekes]

This issue is imported from pivotal - Originaly created at Feb 17, 2021 by Thijs Kinkhorst

One frequent use case of stats (admin interface) is to compare usage of entity's that are migrating to another entityid. For these the descriptive names of the services to compare are often very similar. It would be nice if somewhere I can see the entityid of the service I have selected to confirm I'm looking at the right thing. E.g. as a tooltip or otherwise.