"Change all" function does not work as expected

[masukatto0281]

Hi,

Reproduction steps:

1. Create new layout and draw some kind of shape.
2. Make cell drawn by step 1 shape.
3. Make array instances. ex)3x2
4. Select multiple instances and open property.
5. 5-1: Select "Instances" from the left pane and change the Rotation value.
   5-2: With a single instance selected, check the "Change all" checkbox. Then modify the Rotation value.
6. Click OK to close the Properties window.

What happens:
In case 5-1, the changes will be reflected in all instances.
However, in case 5-2, the changes will only be reflected in the single instance that was selected before checking “Change all”.

Expected behavior:
Both 5-1 and 5-2 should perform the same operation.

Or, is my usage or understanding incorrect?

Versions:
App: Klayout 0.30.4
OS: Windows 11

[klayoutmatthias]

Hi @masukatto0281,

Well, the idea is that "Change all" actually means "change all selected". So when you select the instance node, it will change all instances, when you select one instance it will change only that one.

At least that is how it is implemented across the object types.

What is kind of annoying is that with a single selection, the selection jumps to the "instances" node (and selecting all instance), after you have changed something. That will be fixed in the next minor release.

Matthias