Importing certificate fullchain.pem and privkey.pem file?

Hi, I have a rpi on my network that do the SSL for my domain.
I was thinking to send the fullchain.pem and privkey.pem to the Truenas to be used.
Because I want to use this SSL on my nextcloud that is running on Truenas, and I also have other services on the rpi that need the same certificate.
Is it possible to use the files on Truenas Scale?
I tried to import but it request that I copy and paste the value.
I have the TrueNAS SCALE ElectricEel 24.10.

Thank you.

Sure it is.

I don’t know why this would be a problem. But I expect you’d prefer a more automated solution, and I wrote one: