Hi Bernd,

> 1.) I'm working very much with marks. I have more than 100 for specific
> telescope/camera/location/orientation/object/time combinations. When
> loading a
> mark, the list is shown where I can choose one from. That's good and ok.
> But when
> saving a mark, only the name of the last loaded mark is shown. At this
> point it
> would be nice to have the list of marks too and choose one from it and
> eventually
> replace only few parts of the (sometimes comlex) name.

Hmmm... which would also argue for being able to sort out the marks
a bit into different groups. (On a similar point, I'd really like to
have the user-added datasets split into groups... maybe "deep-sky",
"stellar", "clusters/globulars", etc. Problem here would be coming
up with suitable classifications. But it would help when rummaging
through a huge number of datasets.)

> 2.) I'm working with custum horizons for different observing locations.
> To change
> them, I have to open the Guide8 folder in windows explorer, delete
> HORIZON.DAT,
> copy the wanted horizon file and rename it to HORIZON.DAT. It would be
> nice to
> choose from a list of horizon files like the mark files. A bonus could
> be that
> one can draw a horizon line from within Guide and save it too.

Only problem here is that most people are sticking with one horizon
file (or at most, one per planet... and there is already a provision
for this, which is why the moon shows a lunar-like horizon, with data
stored in 'horizo10.dat'.)

That might, I'll admit, change if Guide had a few horizons built
into it (so one could select "mountain horizon" vs. "urban horizon"
vs. "rural horizon").

> PS: I'm a surveying engineer and have measured many horizon / visibility
> profiles
> not only for my own observing places but also for other public
> observatories.

And if people could enter their own horizons, possibly by pointing
their GoTo scope at a variety of points around the horizon ("the horizon
goes from here to here, to here, to here... add a tree at this point...
bigger one, please... and a building here...") Well, something for me
to think about, anyway!

I've also pondered the idea of allowing people to add in pictures
(.jpgs) of their horizons. Take a few pictures around your horizon,
have some feature in Guide to place them at correct positions and
orientations and scales... it'd be nice, but I've yet to figure out a
reasonable way of doing it.

-- Bill