> The buttons I like to change are internally assigned. For example, 
> I 
> would prefer to use key "b" to move backwards through residues of a 
> chain. Right now you need two hands for that (shift-space). 

I dont know what size of keyboard you use, but for me it works perfectly
fine with one hand (pinky on the Shift key and thumb on Space) ;-) 
I imagine the logic here is that the two functions are related. Space
moves forward, and holding down another key reverses the function
(similar to using lower and upper keys).

> To drag 
> the 
> map, again, you need two hands (ctrl-left mouse). I would like to 
> have  
> some button assignments included in the preferences. There are so 
> many 
> keys on the key board, why do you need to combine several keys to 
> do one 
> function?

Usually key bindings use one key, however at some point you need extra
ones and use obvious simple additions e.g. capital ones (this shouldnt
be too much of a burden). The situation is (obviously) different is you
want to move things around with the mouse (or for that matter other
devices) as here the buttons are usually limited to 3 (sometimes even 1
 - Mac users with one button mice ;-) ). So the obvious thing to do is
to combine it with keys to increase the number of possible movements
(this is for what I know done by almost all molecular graphics programs
in one way or the other). Usually the keys used here are found on both
sides of the keyboard and are so easily accessible for left and right
handed people when using the mouse with the other hand (except when
holding a coffee mug ;-) ). Anyway feel free to bind e.g. the arrow keys
to a view translation.
For having key binding in the Preferences: this may be a bit tricky for
various reasons, but mainly because a lot of key bindings dont just do
one thing but execute a whole series of functions and are after all
(user) programmable.

B

***************************************************

Dr. Bernhard Lohkamp
Assistant Professor
Div. Molecular Structural Biology
Dept. of Medical Biochemistry and Biophysics (MBB)
Karolinska Institutet
S-17177 Stockholm
Sweden

phone: (+46) 08-52487673
fax:   (+46) 08-327626
email: bernhard.lohk...@ki.se

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