Do you have any thoughts on why it wasn't clear that you could select a partition in the list to modify it or delete it? Note that the text at the top of the list says something similar.
don't know really. I guess I had the fear that if I select on one partion, this will be select for /. as with the old installer. the first select partion will be /. but if you say its written that partionens can be deleted and created, it must be ok, but for me it simply wasn't clear at that moment and I switched to cfdisk which I know. I must admit that I didn't all the (long) texts in the various windows. I normally saw the section I could do and it was clear to me what to choose. just not in this case ;-)