Marked ready for review,. not certain where i can add tests or docs TBH.

Will let the review dictate that

There's a lot here, and it's quite transformational in terms of some of the helper/utilise functions being put in, but have done my best to at least offer a first sweep of opinions/thoughts.

Going to re-review this today. I'm thinking a docs section inside the "User Guides" section would work well.

I'm happy to write that, but don't have a hands on local working example for me to run with - I assume there is a branch I can checkout for NR core? Assuming it's https://github.com/Steve-Mcl/node-red/tree/config-in-subflow?

For the tests, I can add more detail to the "Testing" docs I have on Dashboard with some tricks and tips I've learned, and it'll be nice to see someone else give those a go to sanity check my workflow. As E2E tests go - they're actually quite "fun"

Oh @Steve-Mcl's it's wonderful

Subflow Config & Flow in Editor:

Subflow Instances in Editor:

Rendered Instances in Dashboard:

Okay, one issue and I'm not sure how to resolve it. Setting widget size after it's been moved into a subflow. Because there is no group assigned to the widget, the sizing widget doesn't allow for interaction.

Doesn't show all of it, but quick glimpse at the docs I've added:

Happy to merge this without E2e's as currently, we test against Node-RED 3.1.x and should continue to do so for now. The existing E2E test portfolio will cover that this hasn't introduced any regressions, and once we officially move to 4.x as our main supported version for NR, then we can be sure the underlying tests support that.

Will this work with current node red or will it require V4?

Will this work with current node red or will it require V4?

v4.x only - details added in the docs: https://dashboard.flowfuse.com/user/subflows.html#subflows-in-dashboard-2-0

OK, thanks. We just have to be patient then :)