Hello Steffen,
1) The snipped feature uses the tab key for triggering *further* information, right?
right.
(If I remember correctly) I knew a similar feature (was it in AlphaX/Tk?) where the tab helped me to *complete* the command. For example: \cha + tab gave \chapter or when not clear like: \sub + tab gave a range with all commands starting with \sub... to choose.
Enter \sub and press the escape key (several times). Then you can use the tab key for further information.
In textmate triggering the snipped with tab just works when typed the entire \chapter, right?
right.
There is no-one helping me typing when I get lazy?
If you are too lazy to hit the escape key, then yes :)
2) You assigned F9 to texexec and so on.
(btw: I'll probably change that to cmd-R for the sake of compatibility to existing textmate standards)
When, for some rare reason, I need to change the texexec a bit (with additional options or such), where to do so?
find the 'texexec' command in the bundle editor: Bundles -> Bundle-Editor -> Edit Commands. (In the ConTeXt bundle of course.) If you think that your changes are useful for other users, please share them! The internals will change in the future.
3) Probably a similar (stupid) question: You wrote "the variable PDF_VIEWER, the default is 'Preview'. You can try anything that you can use as an argument for 'open'..." Well, where do I find this in order to have a try?
See http://macromates.com/textmate/manual/environment_variables 9.4 (at the very end). Does this information already help you? Patrick -- ConTeXt wiki and more: http://contextgarden.net