Give the dining room four ways to feel: an ordinary weeknight dinner, friends over, a quiet drink for two, and clearing up afterwards. Each one has its own brightness and colour, and one press should change the whole table rather than me adjusting lamps one at a time.
Start by finding which dining room lights, speakers and air conditioning you can use, read the names back to me, and only build it once I say yes.

Build four dining room scenes and wire them to the four-button panel on the wall. Use one of the ready-made blueprints already on the hub rather than writing config yourself.
First find the dining pendant, the main light, the speaker, the air conditioning and every button on that panel, and read them back to me.
Set them like this: weeknight is pendant 2700K at 70%, main light off, soft music playing quietly, climate 26°C. Entertaining is pendant 3000K at 90%, main light 3000K at 50%, music at a middling volume, climate 24°C. Quiet drink is pendant 2200K at 35%, main light off, jazz very low, climate left alone. Clearing up is pendant and main both 4000K at 100%, music off, climate left alone.
Skip anything I do not own rather than abandoning the whole scene over one missing device.
Once the scenes exist, map each panel button to one of them. These are buttons I press myself, so they should work all day with no schedule on them.
Do not notify me when a scene changes — I am the one pressing the button.
Once it is built, test it yourself, confirm it really runs, and then tell me which devices you used and which button maps to which scene.

My dining area and living room are one open space with no wall between them. Changing only the dining lights looks abrupt, and too big a gap in brightness is uncomfortable to sit in.
Build the same four scenes, but bring the living room lights into every one of them, ten to twenty percent dimmer than the dining side so the table stays the brightest place in the room.
Clearing up is the exception: take the living room up to full cool white as well, so I can see what is left out on both sides at once.
Before you build it, tell me which living room lights you plan to include.

The four dining scenes you set up for me are fine except entertaining — it is too bright and guests get a glare as they sit down.
Take the pendant from 90% to 80% and the main light from 50% to 40%. Leave the colour at 3000K and leave the other three scenes exactly as they are.
When you are done, tell me which scene you touched and what the brightness is now in all four.

The dining panel has gone flaky on me. Same button, and one time the pendant comes on while the wall lights ignore it, the next time it is the other way round. Something different is missing on every press.
Start by pinning down which fittings are actually dropping out. Take the last several presses of that scene, walk through them light by light, and pull out the names that keep failing to move.
Then tell me why it is only sometimes: too many lights being woken at once so a few never get the message, or a handful sitting far enough away that the signal is unreliable.
What I want back is that list plus your explanation. Leave the settings alone for now.