I'd like to propose support for merging tabs, i.e. the opposite of split tab. Would be quite useful when using a tab for each task and once you start to get the tasks done you can minimize the number of tabs and in doing so gain overview. Might be easy, might be hard, might be impossible but would be nice :)
What's the difference between "merging" and just closing the tab you don't want?
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Setting status appropriately.
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Sorry for the super late reply. The functionality I was referring to was not the exact opposite to split (but I thought the wording made sense). But rather that two sessions (ie not visible at the same time) should be able to occupy two tabs in the same session (ie visible at the same time).