I have added a function to stack aligned images semiautomatic. Good because you do this often.
Last version at bottom of page:
http://www.astrofriend.eu/astronomy/...wn-macros.html
No tutorial written to this new function yet, but it's easy to use. Also take a look at the tutorial with manually stacking which is what this function do behind:
http://www.astrofriend.eu/astronomy/...ect-files.html
There are more things going on here with help of a friend, plugin based on JAVA code.
/Lars