Thanks. I was aware of those options, but the problem is that the focus is unpredictable: try selecting a note in a folder or account that's not the target and then running the option to show a different account. The focus does not shift to that leftmost column but stays in the centre note column. Conversely, if one of the leftmost items (account or folder) is selected then running an option to show a specific note will retain the focus in the left column.
What I am trying to accomplish is application of a style to the note name. I can apply a style to the note body by creating it with the appropriate HTML, but I can't find a way to get HTML recognised for the note name so my intention was to use GUI scripting to apply a style from the Format menu. However, being unable to guarantee an anchor point it's difficult to 'steer' the GUI.
Actually, I did just have a small brainwave: quitting the app and relaunching seems always to get to the left column. I can then go with 'show' from there.