A question about the Group

Background:

I created some groups in my app and added my account to them.

The app has a site that’s visible to all users, but one page within the site is only visible to specific groups.

Questions:

1.When visiting this site, how can I switch between groups to test access?

2.I assume I can change my group by clicking this button (the first one in the screenshot). However, the groups I created aren’t listed here. How can I add them to this list?

Additional Info:

This issue occurred during the "Build an Application: Step-by-Step" hands-on practice.

>When I set the visibility of the [My Task] page in the site to "Always show", I can access the [My Task] page.

>But when I set its visibility to "Only visible to specific groups" (the intended setting), the [My Task] page doesn’t appear when I visit the site.

Additionally, groups from other apps are shown in the button’s list, but my created groups (W1481SA Registers/Mechanics/Supervisors) are missing.

(Group objects list in my app be like)

(Pointers be like:)

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