Close-price-in-Signal-tab

You can pass any string as Transaction.SignalName (see QuickRef) and it would appear in the like-named column of the Signal tab.

Thanks for the quick reply. Is there also a possibility with Building Blocks?

Not with Blocks but there is a workaround: expose the code ("Open as C# strategy code") and edit the respective line that creates the trade. It's easy but can't be reversed.

Why is it that I thought we listed the value of all plotted indicators on the Signals view?

I was thinking you could add a rule like SMA(Close, 1)[bar] > 0 (always true except for crude oil in 2020) to plot the Close and be able to see its value there.

We list them in the By Symbol Visualizer.