If you customise Tmux a lot, inevitably you will run out of ways to cleanly map keys (or they have become a mess) and you will yearn for another “leader” or “prefix” to bind to moar mappings. For some, it’s a case of when, not if. My current 1 recommendation: meta+key. By “meta” I mean option / alt and by “key” I mean whatever you have for the key alongside your prefix in your configuration, commonly a or the default b. How do? Tmux configuration odditiesTo find out, we go spelunking in the Tmux manual. First, ignore the prefix2 setting in the manual. Tis a trap! This allows an alternate trigger for existing mappings but not new mappings. i.e. if you have ctrl+a for prefix and then set ctrl+space to prefix2 you can press either of those to trigger something. Not that useful. Next, did you know about “key-tables” in Tmux? From the manual: Keys are bound in a key table. By default (without -T), the key is bound in the prefix key table. This table is used for keys pressed after the…
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