Group - error or lack of understanding

[KimBP]

Say I want' to make a Group into which I'll assign some objects.
I'd expect this is the way to do it:

auto myWidget = lvgl::widgets::someWidget(lvgl::core:scr_act());

auto myGroup = lvgl::core::Group();
myGroup.add_obj(myWidget);

This seems not to work, because myGroup has never created an lv_obj (aka lv_group_t)

So when lv_group_add_obj() is called it will immediately return because provided group was NULL.

It seems like lv_group_create() ought have been called somewhere - or am I missing something?

From what I can see it will work doing

auto myGroup = lvgl::core::Group(lv_group_create());

but that's not so nice. Ought we add a default constructor internally making this call?