thank you for the answers.
1. At the moment it is not possible. This does sound like an interesting enhancement. It will not be available for the first stable release though.
It\'s a pity. i definitely need those additional data fields

2. This is an issue that every gallery system has. To have some sort of consistent look, some systems rescale to a fixed heigth, others rescale to a fixed with. What would you like to see??
an very easy solution for this problem would be to define a sort of bounding box (for example 300x300). every image is scaled so, that it fits into this bounding box. the gallery2 system works so.
so here are the results for the 3 case:
[li]a quadratic image (maybe 400x400) gets scaled to 300x300[/li]
[li]a portrait format image (maybe 200x500) gets scaled to 120x300[/li]
[li]a landscape format image (maybe 500x400) gets scaled to 300x240[/li]
i think this is a better approach, than rescaling all kind of images to a fixed width or height.
maybe the user should decide which method shall be used.
ciao
k4simir