Three ways, and the right one depends on how much of the panel is wrong. Regenerate just the region, reroll the whole thing, or stop generating and compose the fix out of transparent layers.

29 August 2026 · Panel Haus

---

There are three ways, and choosing between them is most of the skill. Regenerate just the part that is wrong, reroll the whole panel, or stop generating and build the fix out of layers. The right one depends entirely on how much of the panel you actually want to keep.

What is wrong	Route	Cost
One detail, the rest is good	Zone Editing	1 to 2 ink
The composition, the angle, the whole idea	Reroll	1 to 2 ink
You know exactly what should be there	Compose it in layers	0 to 2 ink

Most people only know the middle one, which is why most people burn through their ink.

Why the reroll is the expensive habit

Every generation starts from nothing. It has no memory of the image it is replacing, which is the same fact behind character drift between panels.

So when a panel is right except for the hand, and you regenerate the panel, you are not fixing the hand. You are commissioning a new picture and hoping it lands in the same place. The composition moves, the light shifts, the face you were happy with becomes a different face. Now you have two problems.

The rule worth internalising: the more of an image you like, the worse a reroll is as a fix.

Route 1: regenerate only the region

Right-click a panel that already has an image and choose Zone Editing. Drag a box around the problem, type what should be there instead, and only that area is generated. Everything outside your selection stays byte for byte the original.

The edit is the easy part. The seam is the hard part, and two things handle it.

The model is sent more than you selected. The patch that goes out is your box plus a margin of surrounding image, 18 percent on each side by default, adjustable from 5 to 40 percent with the Blend area slider. That margin is context: the model can see the arm your box cut through, the wall behind it and where the light is coming from, so its output already agrees with the picture it is going back into.

The patch is composited, not pasted. Inside your selection the new pixels fully replace the old. Across the surrounding ring, opacity falls from one to zero on a smoothstep curve, a * a * (3 - 2a), which flattens at both ends instead of fading linearly. A linear fade leaves a faint edge where the gradient starts and stops, because human vision is good at spotting a discontinuity in a slope. The smooth curve has no such corner, so there is nothing for the eye to catch.

Nothing touches your page until you press Save and Close. Generate Again stacks the next edit on the current result, a Before and After toggle compares against the untouched original, and Revert throws the chain away.

Use it when one thing is wrong and the rest of the panel is doing its job.

Route 2: reroll, but deliberately

Sometimes the panel is not salvageable. The angle is wrong, the staging is wrong, or you asked for the wrong moment. No amount of patching fixes a picture that is of the wrong thing.

Rerolling is the right call when the composition itself is the problem, or when you have run three zone edits without converging. That third one is a real signal: if the region keeps coming back wrong, the model does not understand what you are asking for in that context, and a fourth attempt is just spending.

Reroll well by changing one thing in the prompt, not five. If you rewrite the whole description you learn nothing about which part was carrying the failure, and you will be back here next panel.

Whole image mode inside Zone Editing does this from the same window: leave the aspect ratio unset and the whole picture is replaced.

Route 3: stop generating and compose it

This is the one almost nobody reaches for, and it is often the correct answer.

If you know exactly what should be in that spot, you do not need a model to guess. Put it there yourself:

1. Get the element as its own image. Generate it alone, grab it from another panel, or pull it from your Art Library.
2. Cut it out. Remove Background gives you a transparent PNG for 1 ink. Enhanced Cutout repaints the subject on white first and then mattes it, which is 2 ink and much better on busy or low-contrast backgrounds.
3. Place it as a sticker. Stickers sit on the content layer, above the panel image, so you position, scale and rotate it directly on the page. The Layers panel controls what sits in front of what.
4. Cut a hole if you need one. The Draw tool has two erasers. Ink depth rubs out your own strokes; Through depth cuts the panel image itself to transparency, so anything you put behind it shows through.

Three reasons this beats generating, when it applies.

It is deterministic. It puts exactly what you placed, exactly where you placed it. No dice roll, no fourth attempt.

It is repeatable. The same cutout dropped into panel two and panel nine is the same pixels. That is consistency for free, and it is the one thing generation cannot promise you.

It is often cheaper. A cutout you already own costs nothing to place. Reused across six panels it costs nothing five more times.

Choosing, in one line each

• The panel is 90 percent right: Zone Editing.
• The panel is of the wrong thing: reroll, changing one variable.
• You can name exactly what belongs there: cut it out and place it.
• Something needs removing rather than replacing: Clean Up Image, in the same right-click menu. Paint over it and the gap fills from the surrounding image, with no prompt to write.

The short version

Generation is for what you cannot specify. Composition is for what you can. Most panels that feel broken need a box drawn around one detail, not a new picture, and a good number of the rest need no generation at all.