Help with sessions!

[jasper-clarke]

I have this sessions here and below is what I am trying to get.

-----------|-----|
NVIM       |     |
-----------|     |
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        layout tall:bias=25;full_size=1;mirrored=true

        cd /run/media/allusive/SSD/Projects/NodeProjects

        launch --type=tab zsh
        launch --type=tab nvim
        launch --type=tab zsh
        resize_window shorter 10

This above file at ~/.config/kitty/nodenvim.conf works but by default it focuses the tab on the left, can I make it focus the neovim tab?

Also a few other questions about tabs, is there a way I can maximize the focused tab to take up the whole window and then toggle it back to its previous size with a keybinding?

Edit:
Just answered the question about maximizing the current window.
Key bindings configured with Nix.

      keybindings = {
        "ctrl+enter" = "toggle_layout stack";
      };

I still don't know how to make it focus neovim by default though!