OK, figured out I wasn't actually in the Plot section, just the plot view. This clears up the labelling and text bit.

It doesn't look like it is possible to adjust the scale of symbols though, or am I missing something? I guess I will need to use generic shapes that can scale and add text to those.

Another question.

I like being able to pick solid-fill colours for fixture symbols but some colour choices make the text boxes hard to read, could we have an option to pick text-box fill colour separately to the fixture colour?

Hi,

Thank you for your feedback, we'll take it into consideration!