Prevent editing a container child's position and size in the inspector

[eighteen-k-gold-malow]

Describe the project you are working on

UI design

Describe the problem or limitation you are having in your project

If I use anchor for percentage layout, once I modify the margin or anchor of the topmost control, it will cause all child controls to automatically set the margin, and then the layout will be messed up

Describe the feature / enhancement and how it helps to overcome the problem or limitation

1. It is recommended to add an optional option to freeze or lock properties such as rect, anchor, margin, otherwise following the changes of the parent control will cause problems such as disordered layout
2. Add new attributes: min anchor, max anchor, min margin max margin, min rect max rect

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

If this enhancement will not be used often, can it be worked around with a few lines of script?

Is there a reason why this should be core and not an add-on in the asset library?

[YuriSizov]

If I use anchor for percentage layout, once I modify the margin or anchor of the topmost control, it will cause all child controls to automatically set the margin, and then the layout will be messed up

I'm not sure I understand your problem. Changing parent's properties is supposed to cause a cascading effect on its children, that's in the nature of the parent-child relationship.

[groud]

For reference, this was implemented by godotengine/godot#30623.