Let’s not suggest a smart tool to fix a in my view slightly of the beaten track workflow.
Why on earth would you keep glueing parts together after separating them?
I have nothing against a smart tool per se.
Could we then turn this into a creative idea wall as in what do we all want it to accomplish?
My guess is that with the multitude of workflows and the many options in Nuendo may be hard to get to a conclusion about what is needed.
My list:
Select
Range select
Clip gain control (clip gain as such needs an update to)
I see no need for anything else but I am sure that some think very different.
How many switches are to many?
To be honest I never liked the PT smart tool, and I’m faster switching tools in Nuendo than I was as a ten year user of PT.