Hi,
I'm following the 3 button tutorial which is for an older version of Opus.
I came to the part shown below and can't find the Show files field.:
"Open your customise window and go to the Commands tab, and in the left window (Category) select "Go" and in the right window, scroll down until you can see an entry called "Path Field (Recent List)". Click on this and drag it onto your toolbar anywhere to the right of your button group. Now go to the "View" Category, and find the command ***"Show Files Field" and drag that to your toolbar, to the right of the Location field. Exit customise mode".