Separation between "fixed tabs" and "temporary tabs"

[Snugi]

Hello,
I miss a separation between "fixed tabs" and "temporary tabs".
A solution could be:
A dropdown menu like variant, which can either be permanently displayed or automatically expanded by hovering over it. The user should be able to decide if the dropdown menu is vertical or horizontal. The user should also be able to decide if the favicons are 32x32 or 16x16 pixel. When hovering over them, information text is displayed.

[Jon]

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[Jon]

Similar idea here: A divider/separator for pinned tabs