I want to send an env before the shell on K9s. I'm researching the K9s configuration, podShell might work, but I wasn't successful.

When I send the Kubectl command manually, I get successful results;

kubectl -n default exec -it target -- env "NEW USER=$USER" bash
root@target:/# env |grep NEW
NEWUSER=mert

I want to add "NEWUSER=$USER" env before entering the shell.
I tried add to podShell but not work.

      shellPod:
        image: busybox:1.31
        command:
        - env
        args:
        - NEWUSER=$USER
        - bash

I tried many solutions. I saw the pod shell command in the K9s logs;

/usr/local/bin/kubectl --context kubernetes-admin@kubernetes exec -it -n default hede -c hede -- sh -c command -v bash >/dev/null && exec bash || exec sh

Maybe it will work, but I couldn't change the code sent.

Is it possible to add this env before shell?