Open and Close "Show/Hide columns popover" in own function

[CodeFromTheEmpty]

i try to recreate the functionality of the Buttons in the Toolbar
like for example
MRT_ShowHideColumnsButton,
MRT_ToggleDensePaddingButton,
MRT_ToggleFiltersButton,

I can
toggle the density with table.setDensity()
show the column filters with table.setShowColumnFilters()
show the gobal filter with table.setShowGlobalFilter()

but I cant find the info how to open and clos the popover which lets you show. hide and reorder the columns as the MRT_ShowHideColumnsButton does.

I guess I need a hint :-)

Thx at all for your help in advence!