When proposing the model we opted for having Row[1,1] as default number of instances, as relatively few vehicles have four wheel steering, i.e. better to have just one instance as default, so that users can change to two instances in an overlay (or in a fork) if they need support for four wheel steering.

Do you have a need for four wheel steering in your VSS usage?

No, I don't have a need for four wheel steering. I just thought it might be unconsciously and wanted to point it out if it's a typo or something. But since it's intended I can close

But we should at least add a comment/rationale, I can create a PR for that and bring up the discussion

Sounds good

MoM:

• Issue presented at meeting
• Erik to prepare PR with rationale, will be discussed when pr available

Isn't it the same as:

...
  instances: [Row1]
...

I think the confusion is caused by the use of the notation PREFIX[start,end] which is intended to expand all the possible combinations.
Here, if the range will expand into only 1 label, then using simple Row1 as instance label would do the job.

Yes, but then we would use a different pattern compared to other Row instantiations. But i have no strong opinion if we rather would like to use/recommend instances: ["Row1"] if there is only one row and instances: Row[1,n] if there are more. You can discuss in next meeting.

For current usage it does not really matter. Would maybe matter more if we would have something like in #642 where instances are proposed to be defined with type. Would make absolutely no difference for key/value-pair solutions but could make difference if you have a model based implementation where you want to call things like

my_axle = getAxle(row=1) or my_axle = getAxle("Row1")