spf for multiple domains

Hi there,

I've currently got Plesk configured for my 3 e-mail accounts to run. I have my spf records correctly set up for that
I now need to add another spf record in order to connect Google's Firebase for a no-reply address that my app needs to use

Do I need two different spf records? After searching for a bit I saw there's a way to use include:
v=spf1 include:_spf.firebasemail.com include:_spf.domain2.email ~all

On plesk though I see this:
v=spf1 +a +mx +a:hostname -all

I get a, i get...

spf for multiple domains