Is it planned that the macros could be edited in the config dialog.

if you click plugins->macro extension plugin->configure, then you can edit them.

Yes, I found it.
But I've found that the integrated editor for the menu.cfg and accel.cfg was very usefull and that the macros were in the same topic so it should be there also if possible.

well the macro is a seperate plugin while the menus and accelerators are built in to kmeleon.