Displaying stars in daytime Finder Chart

[Bobbo]

I have a Finder Chart on screen (which I opened from the Mount Alignment Tool / Display Celestial Pole chart). How can I display stars for that chart during daylight? All star settings that I can see are turned on. When I move to twilight times then the stars appear, which leads me to think that this chart is taking into account the time of day. Fair enough. However, I do have an open cluster displayed in said daylight chart which contradicts my original thinking.

Have I missed a setting somewhere?

Thanks
Bob