[Feature Request] Lock tab and address that allows directory change

[rafabr4]

It would be great to have the same option as Total Commander offers, which is called "Locked, but directory change allowed". It essentially allows to lock a tab with a specific path as the default. You can navigate downwards and upwards without creating a new tab, which makes the tab title have an indicator (e.g. "!") that you're not in the default path anymore. Clicking in the tab name once will make you go back to the default path. Restarting the app will make all these tabs go back to their default path. Thanks.