clone: select item + hold shift + drag mouse, works with single items and groups, but not with multi selections (group up first)
zoom problem: never occured on my machine, sry
but scoping in general: yes, it's a bit distracting, disappearing environment...
go to item: ? just select it in the project explorer, then move it. where's the problem?
terrain texture: i can. really. maybe it's some GXL issue (i use the dx8 lib).
wireframe: select your 3d viewport, press f7, that's it. there you got your txtures. for additional lighting preview, rightclick it>GXL>GXL Properties> in the following dialogue, eslect everything.
placing on terrain: there is none. but you can script it easily with a trace ray downwards.
dock prop panel: is in the works, but set it to your "p" key, that's how i do it, and it's really easy this way.
snapping: guess what's the slider for next to the movement restrictor...?
same behaviour: plan your maps: if you have 500 sprites with all the same behaviour, first, create ONE, add the behaviour, THEN copy it ...
alternatively: it can be done by scipt, check all your ents wit ent_next for a certain parameter then add a function (search a bit in the forums, i am such a bad scripter).
can't wait for my beer