Hi,
We have simplified the segmentation toolbox in the latest versions of medinria. And one of them lead to the disappearance of the save button. In fact, once you start painting or using the magic wand, an image is automatically created in the non persistent database of medinria (called Segmented from ... in the database navigator) and is updated when you continue painting.
Once you are done segmenting, you can either use that non persistent volume in another workspace (eg diffusion), or export it to your system by right clicking on the Segmented from volume.
Hope this helps
Olivier