Please do not bother I have resolved the issue.
Press [H] This toggles "Hide the pins" on and off.
And- on the Tools Bar [T] below the image- the "Show Edit Pins" has a drop-down menu to make selections from- Auto, Always, Selected, Never. Choose your option.
In auto mode, the pins only appear when the mouse cursor is above the image window.
Your reply as I typed. Resolved- great!