Hi Marc,

> but it could be that any instance, (not only the master)
> could be edited and the change would reflect on all others.

That's one possibility... But also often an instance mechanism allows for things to be positioned independently from the master version.

Like for instance scaling an instance in many systems will only scale that instance and not have a ripple effect of also scaling all the other instances as well.

That allows for something like having a "snowflake" master object, and then a whole snowstorm of snowflake instances, each of which has a different position, orientation, and scale.


> and there could be the option of external-file instance thing capability...

Yup, of course each of these options that gets added adds a lot of work, especially with all the new UI that is involved for them.

For example an external-file capability would need more than just a checkbox on the Copy command to control it...

- Michael