OK, let’s see if adding the bit of code in the correct file works for me. Mind you, I have been a bit thick – it wasn’t even in the “wrong” place any more, as there had been an update to WordPress, which removed it. Doh!!

@vanessa That is precisely why you put these things in a child theme.

@matigo So it seems - the update was automatic I think, so... Now googling “child themes” for WordPress. I think it might be too late in the evening for me to consider doing anything about that now. Looks a bit complicated to me!

@matigo Hmm. I'm not sure my brain understands this yet. I might break everything. Only two hours left of today anyway.

@matigo Indeed. Well, I have created a child theme directory. Will read up more about how exactly I move on from there… It’s bound to be more complicated than I'd like!

@vanessa It really is Tinkering with WP 101. The instructions in the codex are pretty good, and I think you will enjoy it. If you need help, there are plenty here or in the other place who can oblige.

@jeremycherfas I did a bit of reading last night and found some things which are starting to make sense. I'll be having a play when I get a moment...

@vanessa Good to hear. We're here when you need us.

@jeremycherfas At the moment just figuring out which bits of code I need to amend with relevant data!