Use stacks properly

Work within auto-layout v1 limits: persist structure, apply layout passes, avoid expecting full live hug/fill from the solver yet.

Steps

1. Select two or more siblings on one screen and convert them to a stack from Smart Actions.
2. Set direction, gap, padding, and alignments in the inspector; commit changes so the stack record updates.
3. Trigger layout apply (stack solver) when you change membership—remember v1 does not continuously re-solve on every freeform drag like always-on auto-layout in other tools.
4. Read /resources/docs/compose-stacks for the explicit not-yet list (nested stacks UX, hug/fill) so expectations match the code path.

For deeper reference, open Docs.