Backend request for the Viewer's Active .rbl #12205
Description
In the rerun GUI, the user can modify the blueprint graphically, and basically click a "download as a .rbl file" through the menu.
Thats great, but completely manual.
I'd love if the python API could ask "hey, Mr. Grpc, if there is only one viewer active, could you ask that viewer for its current blueprint and send me the results as a btye stream" (so the user doesnt have to click "download .rbl" manually)
Why? Because then, next time python starts, the python can send that auto-downloaded rbl to the viewer without the user needing to load it manually.