How to do CPFP on CLN?

I closed a channel and there was no option I saw on CLN or RTL to modify the fee. The fee rate was set at 1.01 sat/vB, and I think its going to be a long, long time before this goes through. I’ve read up on CPFP but I have no idea how to implement this in Umbrel on CLN. I am strictly a novice user when it comes to anything command line interface, so I really quickly hit a brick wall where it doesn’t recognize any of the commands I’ve tried and I have no idea where to go from here. I’ve asked grok “what is the command line script in core lightning node to implement CPFP” and it gives me a bunch of bash scripts, and I’ve tried to input these into the Umbrel terminal window but even something as simple as asking it to list the pending on-chain transactions, and I quickly hit a dead end. Example pasted below.
$ lightning-cli listchaintxns
{
“code”: -32601,
“message”: “Unknown command ‘listchaintxns’”
}

Appreciate any guidance you all can provide!

Hi,
I think you might want to accelerate the confirmation of the channel, no?

If so, pull it up on the mempool, click the accelerate button, and be prepared to make an additional payment and your transaction will be prioritized by about 80% of the mining pool.

D.