[Proposal] Allow to Activate Pingroup on Instance

[texone]

Every Pin that gets a Spread should be configurable to be sprectral or treated as pingroup on Instance, currently you always wrap a nose around and have two nodes.

[gregsn]

The upcoming Inspector already allows a bit more configuration of node-application-side pins than what we were used to with the configuration menu: change the Visibility of a pin.

Maybe the Inspector will allow us to edit fragments of the process node or even pin groups.

At least this would be the place the user would probably look for such a feature(?)