It would be handy to be able to jump to an inbuilt function when clicking on it in the pop-up so that you can view the description.

For example, when adding the customer phone number below, the FormatPhoneNumber function loses focus and so you can no longer see the details in the Description pane.

But if you could click on the blue text above (i.e. the function name) and instantly be able to see the description without having to browse to it again, that would be helpful.

Because of course the same thing happens for every parameter you enter by double clicking to enter the text. So currently, either you have to keep repeatedly browsing to the function, memorise the deails, or hand write all the values so it never loses focus.