Hi,
I do not know the implementation that Comstice did to achieve the wallboard, but Finesse does not have REST APIs (or even that information) to be able to accomplish it. CCE and CCX only has configuration REST APIs so it isn't possible to make that wallboard either. Most likely, they are using the CTI protocol for CCE and CCX to get this information. This is an API, but not a REST API and it is very complex.
Thanx,
Denise