Hi Gunter, it sounds like you've got it worked out now? I will see about fixing up the crash.

> This brings me to my next question which is when I try to click on for example the centre of a
> circle , several little crosses show up
> so I don't know which one to click on:

Currently the best thing to do in this situation is to hide other pieces so they are out of the way and their centers won't be targeted.

A quick way to hide other thing is to select the object you want to target and then right-click on the Edit > Hide button. A right click there will do an "isolate" function where the selected objects will stay visible and everything else will be hidden. Also it will store a memory of the hide/show state before the isolate so when you trigger it second time it will restore things to the pre-isolate state.

- Michael