This Idea enhancement is requesting for the Pulse site to implement the capability to choose a default stream
per CM Change Request type.

My team uses the dimensions website to allow us to provide metrics
on what tasks we have completed ( or worked on) for a specific customer over a time range.
We can also include effort (Hours).
If the tasks and CR are in different streams then it
becomes increasingly difficult to get a consolidated report from dimensions.
We have to run the report on every possible stream to make sure we did not
miss a task or CR.
Pulse does not give you an opportunity to set the stream
context for the object you are creating ( request type ) it does use the last
stream you logged into in dimensions but that is a very poor solution and is
often wrong if you do very much in different streams or products in dimensions
like most of us do.