Configure Window Requests

I'm working on Catalog 3.0 now, and the Configure window could use some work imo.

Can we enable it to resize and/or maximize?
If we can do 1. above, could the preview image resize and/or maximize proportionately with the Configure window size? Currently, 400x225 is the best fit for preview images, but I'd like larger ones if possible.
Can we create separated option windows (left side pane) based upon how we assign it in the mod.xml? I'm wanting a better way to organize subcategories. For example, download the Field Models category from the Catalog, and the Configure window have separated panes labeled "Objects", "Main Characters", "Support Characters" and "Enemies". Within those panes will be assigned listings just like we do it now.

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