Routing Instrument into instrument

Does anyone know of a quick method for routing?

At the moment when I route say scaler into another Instrument to drive midi it’s quite the cumbersome task.

And if you route one instance of scaler to an instrument if you drag and drop a new vst instrument into the project it will assume you want it to connect to scaler as well.

In fact as it stands the whole routing process seems like something that could use some TLC.
What do we all think?