I need help with #SwiftUI please!

I have a List. When you tap on a cell, it gains a row of buttons to interact with it (think TweetBot/Ivory). So the cell should grow in height to accommodate the buttons; the rest of the cell's content should stay in the same place; the buttons should appear somehow. One cell might be hiding the buttons while another is showing.

I can't get this to work with the cell content jumping slightly.

I really want to stick with List, not go to ScrollView. Any ideas?

MacOS folks: I'm having an issue in my app that makes heavy use of Core Image. Sometimes it'll get into a state where things that should be GPU operations take ages (like 100 times slower than usual), and it starts dropping textures. Is this just how it reacts if it runs out of VRAM?

Console messages:

Command queue creation failed. Worst processes (
{
Count = 2002;
Process = "pid 62225, Forge";
},

Context leak detected, msgtracer returned -1

I’m quite excited about this. Sadly it’s not my MP (I’m one constituency over), but I’ve got dreams that we might get some form of a left wing political movement again. Please don’t crush my hope!

(At the very least it might give the “fuck the big politicians” crowd another choice beyond Farage. Some of them might take it!)