Allow for nested widgets (per-group single/multiple choice)

Allow including widgets inside widgets, most useful for single-select or multiple-choice sections. For example: a 'Main door' widget containing a 'Video Door Bell' multi-choice sub-widget with optional add-ons (1/3 year license), and a second sub-widget for Security Cameras with its own required and optional add-ons. Bundles do not work here because they cannot carry optional add-ons.

Additional context (Lucrasoft): today single vs multiple choice is set for the whole products page. Allow grouping products so the choice mode applies per group, e.g. product 1 or product 2, and separately product 3 or product 4. Nested widgets would deliver this.

It would be great if we could include widgets inside widgets. This would be most useful for creating single select or multiple choice "sections"

For example:
"Main door" (Widget 1)
"Select one of the following options" (Content 1)
"Video Door Bell" (Widget 2, multi-choice with min 0)

• Video Door Bell (item 1)

• - - 1 year license (optional add-on 1)

• - - 3 year license (optional add-on 2)

"Video Door Bell" (Widget 3, multi-choice with min 0)

• Security Cameras (item 2)

• - - Outdoor mount (required add-on 1)

• - - 1 year license (optional add-on 3)

• - - 3 year license (optional add-on 4)

I can't use bundles here because then I wouldn't be able to have optional add-ons. This is the best case scenario, if I needed additional items that would require the user to select all options within the widget. I also cannot enforce single-choice rules. With nested widgets I could have one widget with single select rules and the other two widgets within that widget, much more dynamic and useful